Algebra 2 Course Details
Building unique learning experiences with the courses mapped to the national standards.
Course Metrics

Skills344

Tutorials339

Video Lessons178

Examples1205

Free Response Questions9758

Multiple Choice Questions3204

Online Practice Assessments105

Graded Assessments107
Overview
The Algebra II curriculum at Educo Learning Center (ELC) focuses on essential topics aligned with the Common Core standards. In Algebra 2, students build on foundational algebraic principles, focusing on complex topics like polynomial, rational, radical relationships, and trigonometric functions. They explore real and complex number systems, perform operations with vectors and matrices, and apply arithmetic to polynomials and rational expressions. Key areas include understanding and interpreting functions, constructing and comparing linear, quadratic, and exponential models, and extending the domain of trigonometric functions using the unit circle. Students also delve into statistical analysis, evaluating data, and understanding probability, aiming to develop advanced problemsolving skills and prepare for higherlevel mathematics.
Educo Learning Center Algebra II Math curriculum offers a comprehensive learning experience with interactive tutorials, detailed lecture notes, lecture videos, unlimited online practice, printable practice sheets or eworkbooks, online assignments, and tests. Students benefit from instant feedback with solutions and detailed progress reports. The curriculum emphasizes realworld problemsolving and visual representations to achieve gradelevel outcomes, ensuring students grasp essential topics aligned with Common Core standards.
"I Can" Statements For Math Algebra 2
Mathematics  High School—Number and Quantity
Standard  HSNRN.A.1 

Standard Description  1. Explain how the definition of the meaning of rational exponents follows from extending the properties of integer exponents to those values, allowing for a notation for radicals in terms of rational exponents. For example, we define 51/3 to be the cube root of 5 because we want (51/3) 3 = 5 (1/3)3 to hold, so (51/3) 3 must equal 5. 
Online Corse Hierarchy  6.1, 7.4, 7.5 
I Can Statements  I can describe the relationship between rational exponents and radicals. 
Standard  HSNRN.A.2 

Standard Description  2. Rewrite expressions involving radicals and rational exponents using the properties of exponents. 
Online Corse Hierarchy  7.5 
I Can Statements  I can rewrite expressions that contain radicals and/or rational exponents using the properties of exponents. 
Standard  HSNRN.B.3 

Standard Description  3. Explain why the sum or product of two rational numbers is rational, that the sum of a rational number and an irrational number is irrational, and that the product of a nonzero rational number and an irrational number is irrational. 
Online Corse Hierarchy  1.2 
I Can Statements  I can explain which operations are closed in the set of real numbers and its subsets of rational and irrational numbers. 
Standard  HSNCN.A.1 

Standard Description  1. Know there is a complex number I such that i 2 = –1, and every complex number has the form a + bi with a and b real. 
Online Corse Hierarchy  5.4 
I Can Statements  I can define complex numbers. 
Standard  HSNCN.A.2 

Standard Description  2. Use the relation i 2 = –1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers. 
Online Corse Hierarchy  5.4 
I Can Statements  I can add, subtract, and multiply complex numbers. 
Standard  HSNCN.A.3 

Standard Description  3. (+) Find the conjugate of a complex number; use conjugates to find moduli and quotients of complex numbers. 
Online Corse Hierarchy  5.4 
I Can Statements  I can find conjugates of complex numbers. I can divide complex numbers. 
Standard  HSNCN.C.7 

Standard Description  7. Solve quadratic equations with real coefficients that have complex solutions. 
Online Corse Hierarchy  5.5 
I Can Statements  I can solve quadratic equations with real coefficients that have complex solutions. 
Standard  HSNCN.C.8 

Standard Description  8. (+) Extend polynomial identities to the complex numbers. For example, rewrite x2 + 4 as (x + 2i) (x – 2i) 
Online Corse Hierarchy  5.5 
I Can Statements  I can extend polynomial identities to complex numbers. 
Standard  HSNCN.C.9 

Standard Description  9. (+) Know the Fundamental Theorem of Algebra; show that it is true for quadratic polynomials. 
Online Corse Hierarchy  5.5 
I Can Statements  I can understand the Fundamental Theorem of Algebra. 
Standard  HSNVM.A.1 

Standard Description  1. (+) Recognize vector quantities as having both magnitude and direction. Represent vector quantities by directed line segments and use appropriate symbols for vectors and their magnitudes (e.g., v, v, v, v). 
Online Corse Hierarchy  4.7 
I Can Statements  I can define vectors, their direction, and their magnitude. 
Standard  HSNVM.A.2 

Standard Description  2. (+) Find the components of a vector by subtracting the coordinates of an initial point from the coordinates of a terminal point. 
Online Corse Hierarchy  4.7 
I Can Statements  I can find the components of a vector. 
Standard  HSNVM.B.4 

Standard Description  4. (+) Add and subtract vectors. a. Add vectors endtoend, componentwise, and by the parallelogram rule. Understand that the magnitude of a sum of two vectors is typically not the sum of the magnitudes. b. Given two vectors in magnitude and direction form, determine the magnitude and direction of their sum. c. Understand vector subtraction v – w as v + (–w), where –w is the additive inverse of w, with the same magnitude as w and pointing in the opposite direction. Represent vector subtraction graphically by connecting the tips in the appropriate order, and performing vector subtraction componentwise. 
Online Corse Hierarchy  4.7 
I Can Statements  I can add and subtract vectors. 
Standard  HSNVM.B.5 

Standard Description  5. (+) Multiply a vector by a scalar a. Represent scalar multiplication graphically by scaling vectors and possibly reversing their direction; perform scalar multiplication componentwise, e.g., as c(vx, vy) = (cvx, cvy). b. Compute the magnitude of a scalar multiple cv using cv = cv. Compute the direction of cv knowing that when cv ≠ 0, the direction of cv is either along v (for c > 0) or against v (for c < 0). 
Online Corse Hierarchy  4.7 
I Can Statements  I can multiply vectors by a scalar. I can define dot product. 
Standard  HSNVM.C.7 

Standard Description  7. (+) Multiply matrices by scalars to produce new matrices, e.g., when all the payoffs in a game are doubled. 
Online Corse Hierarchy  4.1 
I Can Statements  I can define a matrix. I can multiply a matrix by a scalar. 
Standard  HSNVM.C.8 

Standard Description  8. (+) Add, subtract, and multiply matrices of appropriate dimensions. 
Online Corse Hierarchy  4.1, 4.2 
I Can Statements  I can add and subtract matrices and multiply matrices. 
Standard  HSNVM.C.9 

Standard Description  9. (+) Understand that, unlike the multiplication of numbers, matrix multiplication for square matrices is not a commutative operation but still satisfies the associative and distributive properties. 
Online Corse Hierarchy  4.2 
I Can Statements  I can multiply matrices and understand the properties of matrices. 
Standard  HSNVM.C.10 

Standard Description  10. (+) Understand that the zero and identity matrices play a role in matrix addition and multiplication, similar to the role of 0 and 1 in the real numbers. The determinant of a square matrix is nonzero if and only if the matrix has a multiplicative inverse. 
Online Corse Hierarchy  4.4, 4.5, 4.6 
I Can Statements  I can find the determinant of matrices. 
Standard  HSNVM.C.12 

Standard Description  12. (+) Work with 2 × 2 matrices as transformations of the plane, and interpret the absolute value of the determinant in terms of area. 
Online Corse Hierarchy  4.3, 4.4 
I Can Statements  I can define transformations with matrices. I can find the area using determinants. 
Mathematics  High School—Algebra
Standard  HSASSE.A.1 

Standard Description  1. Interpret expressions that represent a quantity in terms of its context. a. Interpret parts of an expression, such as terms, factors, and coefficients. b. Interpret complicated expressions by viewing one or more of their parts as a single entity. For example, interpret P(1+r)n as the product of P and a factor not depending on P 
Online Corse Hierarchy  1.1, 1.4, 1.6, 6.3, 6.5, 11.1, 11.2 
I Can Statements  I can interpret algebraic expressions that describe realworld scenarios. This means: I can interpret the parts of an expression including the factors, coefficients, and terms. I can use grouping strategies to interpret expressions. I can create and interpret quadratic and exponential algebraic expressions to describe realworld scenarios. 
Standard  HSASSE.A.2 

Standard Description  2. Use the structure of an expression to identify ways to rewrite it. For example, see x4 – y 4 as (x2 ) 2 – (y2 ) 2 , thus recognizing it as a difference of squares that can be factored as (x2 – y 2 )(x2 + y2 ). 
Online Corse Hierarchy  6.5, 8.1, 8.2, 8.5 
I Can Statements  I can recognize the difference of squares. I can recognize a quadratic perfect square trinomial. 
Standard  HSASSE.B.3 

Standard Description  3. Choose and produce an equivalent form of an expression to reveal and explain the properties of the quantity represented by the expression. a. Factor a quadratic expression to reveal the zeros of the function it defines. 
Online Corse Hierarchy  6.3 
I Can Statements  I can determine if rewriting an expression will reveal important properties of the expression. I can factor a quadratic expression to reveal its zeros. 
Standard  HSASSE.B.4 

Standard Description  4. Derive the formula for the sum of a finite geometric series (when the common ratio is not 1), and use the formula to solve problems. For example, calculate mortgage payments 
Online Corse Hierarchy  11.2 
I Can Statements  I can define geometric series. I can derive the formula for the sum of a finite geometric series (when the common ratio is not 1), and use the formula to solve problems. 
Standard  HSAAPR.A.1 

Standard Description  1. Understand that polynomials form a system analogous to the integers; namely, they are closed under the operations of addition, subtraction, and multiplication; add, subtract, and multiply polynomials. 
Online Corse Hierarchy  6.2, 6.3, 
I Can Statements  I can identify a polynomial expression. I can add, subtract, multiply, and divide polynomials. 
Standard  HSAAPR.B.2 

Standard Description  2. Know and apply the Remainder Theorem: For a polynomial p(x) and a number a, the remainder on division by x – a is p(a), so p(a) = 0 if and only if (x – a) is a factor of p(x). 
Online Corse Hierarchy  6.7, 6.8 
I Can Statements  I can apply remainder and factor theorems. I can define a relationship between roots and zeros. 
Standard  HSAAPR.B.3 

Standard Description  3. Identify zeros of polynomials when suitable factorizations are available, and use the zeros to construct a rough graph of the function defined by the polynomial. 
Online Corse Hierarchy  5.3, 6.4 
I Can Statements  I can identify zeros of polynomials by factorization. 
Standard  HSAAPR.C.5 

Standard Description  5. (+) Know and apply the Binomial Theorem for the expansion of (x + y)n in powers of x and y for a positive integer n, where x and y are any numbers, with coefficients determined, for example, by Pascal's Triangle. 
Online Corse Hierarchy  11.4 
I Can Statements  I can apply the Binomial theorem for the expansion of (x + y)n in powers of x and y for a positive integer n, where x and y are any numbers, with coefficients determined, for example, by Pascal's Triangle. 
Standard  HSAAPR.D. 6 

Standard Description  6. Rewrite simple rational expressions in different forms; write a(x)/b(x) in the form q(x) + r(x)/b(x), where a(x), b(x), q(x), and r(x) are polynomials with the degree of r(x) less than the degree of b(x), using inspection, long division, or, for the more complicated examples, a computer algebra system. 
Online Corse Hierarchy  8.1, 8.2, 8.3 
I Can Statements  I can simplify rational expressions. 
Standard  HSAAPR.D.7 

Standard Description  7. (+) Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions. 
Online Corse Hierarchy  8.1, 8.2, 8.3 
I Can Statements  I can simplify rational expressions. I can add, subtract, multiply, and divide rational expressions. 
Standard  HSACED.A.1 

Standard Description  1. Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions and simple rational and exponential functions. 
Online Corse Hierarchy  1.3, 1.4, 1.5, 1.6, 5.3, 6.5 
I Can Statements  I can solve linear equations in one variable. I can solve and graph inequalities. I can solve absolute value equations and inequalities. I can solve polynomial equations. I can solve rational equations. 
Standard  HSACED.A.2 

Standard Description  2. Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales. 
Online Corse Hierarchy  2.2, 2.4, 5.1, 8.3, 8.4 
I Can Statements  I can write and graph equations representing a relationship between two variables or quantities. I can write and interpret quadratic equations and inequalities mathematically and in context, graphically and algebraically. 
Standard  HSACED.A.3 

Standard Description  3. Represent constraints by equations or inequalities, and by systems of equations and/or inequalities, and interpret solutions as viable or nonviable options in a modeling context. For example, represent inequalities describing nutritional and cost constraints on combinations of different foods. 
Online Corse Hierarchy  6.6, 10.6 
I Can Statements  I can represent constraints with linear equations, inequalities, and systems of equations or inequalities. I can determine whether solutions are viable or nonviable options, given the constraints provided in a modeling context. 
Standard  HSACED.A.4 

Standard Description  4. Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations. For example, rearrange Ohm's law. V = IR to highlight resistance R. 
Online Corse Hierarchy  1.3 
I Can Statements  I can solve formulas for a particular variable of interest. 
Standard  HSAREI.A.1 

Standard Description  1. Explain each step in solving a simple equation as following from the equality of numbers asserted in the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method. 
Online Corse Hierarchy  1.3 
I Can Statements  I can explain and justify each step for solving multistep linear equations. 
Standard  HSAREI.A.2 

Standard Description  2. Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise. 
Online Corse Hierarchy  7.4, 7.6, 8.5 
I Can Statements  I can solve radical equations. I can solve rational equations. 
Standard  HSAREI.B.3 

Standard Description  3. Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters. 
Online Corse Hierarchy  1.3, 1.5, 1.6 
I Can Statements  I can solve multistep linear equations in one variable, including equations with coefficients represented by letters. I can solve multistep linear inequalities in one variable. 
Standard  HSAREI.B.4 

Standard Description  4. Solve quadratic equations in one variable. a. Use the method of completing the square to transform any quadratic equation in x into an equation of the form (x – p)2 = q that has the same solutions. Derive the quadratic formula from this form. b. Solve quadratic equations by inspection (e.g., for x2 = 49), taking square roots, completing the square, the quadratic formula, and factoring as appropriate to the initial form of the equation. Recognize when the quadratic formula gives complex solutions and write them as a ± bi for real numbers a and b. 
Online Corse Hierarchy  5.3, 5.5 
I Can Statements  I can determine whether the solution of a quadratic equation will be real or complex. I can find real solutions to quadratic equations in one variable using multiple methods and justify my solution method. 
Standard  HSAREI.C.5 

Standard Description  5. Prove that, given a system of two equations in two variables, replacing one equation with the sum of that equation and a multiple of the other produces a system with the same solutions. 
Online Corse Hierarchy  3.1 
I Can Statements  I can write, solve, interpret, and justify my solution method for systems of linear equations using multiple methods (linear combination, substitution, and graphing). 
Standard  HSAREI.C.6 

Standard Description  6. Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on pairs of linear equations in two variables. 
Online Corse Hierarchy  3.1 
I Can Statements  I can solve a system of linear equations using multiple methods (linear combination, substitution, and graphing). 
Standard  HSAREI.C.7 

Standard Description  7. Solve a simple system consisting of linear and quadratic equations in two variables algebraically and graphically. For example, find the points of intersection between the line y = – 3x and the circle x 2 + y2 = 3. 
Online Corse Hierarchy  10.6 
I Can Statements  I can solve a system of equations consisting of linear equations and quadratic equations algebraically and graphically. 
Standard  HSAREI.C.9 

Standard Description  9. (+) Find the inverse of a matrix if it exists and use it to solve systems of linear equations (using technology for matrices of dimension 3 × 3 or greater). 
Online Corse Hierarchy  4.5, 4.6 
I Can Statements  I can find the inverse of a matrix. I can use matrices to solve a system of equations. 
Standard  HSAREI.D.10 

Standard Description  10. Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line). 
Online Corse Hierarchy  2.2 
I Can Statements  I can graphically describe and interpret the solution set of a system of equations and relate that to the algebraic solution. 
Standard  HSAREI.D.11 

Standard Description  11. Explain why the xcoordinates of the points where the graphs of the equations y = f(x) and y = g(x) intersect are the solutions of equation f(x) = g(x); find the solutions approximately e.g., using technology to graph the functions, make tables of values, or find successive approximations. Include cases where f(x) and/or g(x) are linear, polynomial, rational, absolute value, exponential, and logarithmic functions. 
Online Corse Hierarchy  8.5, 10.6 
I Can Statements  I can solve a system of linear and quadratic equations. I can solve rational equations. 
Standard  HSAREI.D.12 

Standard Description  12. Graph the solutions to a linear inequality in two variables as a halfplane (excluding the boundary in the case of a strict inequality), and graph the solution set to a system of linear inequalities in two variables as the intersection of the corresponding halfplanes. 
Online Corse Hierarchy  2.7, 3.3 
I Can Statements  I can describe and interpret the solutions to a system of linear inequalities graphically. 
Mathematics  High School—Functions
Standard  HSFIF.A.1 

Standard Description  1. Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range. If f is a function and x is an element of its domain, then f(x) denotes the output of f corresponding to the input x. The graph of f is the graph of the equation y = f(x). 
Online Corse Hierarchy  2.1 
I Can Statements  I can determine if a relation is a function. I can represent a function using a graph, table, and equation and describe the relationship between each form using function notation. 
Standard  HSFIF.A.2 

Standard Description  2. Use function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of context. 
Online Corse Hierarchy  2.1 
I Can Statements  I can evaluate a function using function notation and interpret the value in context. I can determine the domain and range of a function. 
Standard  HSFIF.A.3 

Standard Description  3. Recognize that sequences are functions, sometimes defined recursively, whose domain is a subset of the integers. For example, the Fibonacci sequence is defined recursively by f(0) = f(1) = 1, f(n+1) = f(n) + f(n1) for n ≥ 1. 
Online Corse Hierarchy  11.3 
I Can Statements  I can recognize that sequences are functions. I can define arithmetic sequences. 
Standard  HSFIF.B.4 

Standard Description  4. For a function that models a relationship between two quantities, interpret key features of graphs and tables in terms of the quantities and sketch graphs showing key features given a verbal description of the relationship. Key features include intercepts; intervals where the function is increasing, decreasing, positive, or negative; relative maximums and minimums; symmetries; end behavior; and periodicity. 
Online Corse Hierarchy  2.4, 5.1, 6.4, 7.2, 7.3, 8.3, 9.1, 9.2 
I Can Statements  I can interpret the graphical representation of linear and exponential functions. This means: I can identify and interpret an appropriate domain and range. I can interpret key elements of the graph, including the average rate of change, yintercept, xintercepts. I can sketch a graph showing key features given a particular scenario or context. 
Standard  HSFIF.B.5 

Standard Description  5. Relate the domain of a function to its graph and, where applicable, to the quantitative relationship it describes. For example, if the function h(n) gives the number of personhours it takes to assemble n engines in a factory, then the positive integers would be an appropriate domain for the function. 
Online Corse Hierarchy  5.1, 6.4, 7.1, 7.2, 7.3, 8.4, 9.2 
I Can Statements  I can determine the appropriate domain of a function. I can solve direct, joint, and inverse variation equations. 
Standard  HSFIF.B.6 

Standard Description  6. Calculate and interpret a function's average rate of change (presented symbolically or as a table) over a specified interval. Estimate the rate of change from a graph. 
Online Corse Hierarchy  2.3 
I Can Statements  I can calculate and interpret the rate of change of a function. I can estimate the rate of change over a given interval from a graph. 
Standard  HSFIF.C.7 

Standard Description  7. Graph functions expressed symbolically and show key features of the graph by hand in simple cases and using technology for more complicated cases. a. graph linear and quadratic functions and show intercepts, maxima, and minima. b. Graph square root, cube root, and piecewisedefined functions, including step functions and absolute value functions. c. Graph polynomial functions, identifying zeros when suitable factorizations are available and showing end behavior. d. (+) Graph rational functions, identifying zeros and asymptotes when suitable factorizations are available and showing end behavior. e. graph exponential and logarithmic functions, showing intercepts and end behavior, and trigonometric functions, showing period, midline, and amplitude. 
Online Corse Hierarchy  2.4, 5.1, 7.2, 7.3, 8.3, 9.1, 9.2, 14.1 
I Can Statements  I can graph linear, exponential, and quadratic functions that are expressed symbolically. This means: I can show intercepts, maxima, and minima. I can graph square root and cube root functions. I can graph piecewisedefined functions, including step functions and absolute value functions. I can graph polynomial functions. I can graph a rational function. I can graph exponential and logarithmic functions. I can graph trigonometric functions. 
Standard  HSFIF.C.8 

Standard Description  8. Write a function defined by an expression in different but equivalent forms to reveal and explain different properties of the function. a. Use the process of factoring and completing the square in a quadratic function to show zeros, extreme values, and symmetry of the graph, and interpret these in terms of context. b. Use the properties of exponents to interpret expressions for exponential functions. For example, identify the percent rate of change in functions such as y = (1.02)t , y = (0.97)t , y = (1.01)12t, y = (1.2)t/10, and classify them as representing exponential growth or decay. 
Online Corse Hierarchy  5.1, 5.3, 6.8, 8.3, 9.1, 9.5 
I Can Statements  I can factor to find the zeros of a quadratic function. I can complete the square to show extreme values and symmetry. I can interpret important points on a quadratic graph in terms of context. I can model exponential growth and decay. 
Standard  HSFIF.C.9 

Standard Description  9. Compare properties of two functions, each represented differently (algebraically, graphically, numerically in tables, or by verbal descriptions). For example, given a graph of one quadratic function and an algebraic expression for another, say which has the larger maximum. 
Online Corse Hierarchy  5.1, 7.2, 7.3 
I Can Statements  I can compare two functions, each represented differently (graphs, tables, equations, verbal descriptions), and draw conclusions based on those comparisons. 
Standard  HSFBF.A.1 

Standard Description  1. Write a function that describes a relationship between two quantities. a. Determine an explicit expression, a recursive process, or steps for calculation from a context. c. (+) Compose functions. For example, if T(y) is the temperature in the atmosphere as a function of height, and h(t) is the height of a weather balloon as a function of time, then T(h(t)) is the temperature at the location of the weather balloon as a function of time. 
Online Corse Hierarchy  7.1, 11.2 
I Can Statements  I can write and use recursive formulas for geometric sequences. I can compose functions. 
Standard  HSFBF.A.2 

Standard Description  2. Write arithmetic and geometric sequences both recursively and with an explicit formula, use them to model situations, and translate between the two forms. 
Online Corse Hierarchy  11.1, 11.2 
I Can Statements  I can explain that sequences are functions and are sometimes defined recursively. 
Standard  HSFBF.B.3 

Standard Description  3. Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x), f(kx), and f(x + k) for specific values of k (both positive and negative); find the value of k given the graphs. Experiment with cases and illustrate an explanation of the effects on the graph using technology. Include recognizing even and odd functions from their graphs and algebraic expressions for them. 
Online Corse Hierarchy  5.1, 8.3 
I Can Statements  I can determine the effect of a transformational constant on a linear function. I can describe how a quadratic function can be transformed using a constant, k. This means: I can experiment with different transformational constants and construct an argument about their effect on a quadratic function using technology. I can determine the transformational constant from a graph of a quadratic (shifts and stretches, both vertical and horizontal). 
Standard  HSFBF.B.4 

Standard Description  4. Find inverse functions. a. Solve an equation of the form f(x) = c for a simple function f that has an inverse and write an expression for the inverse. For example, f(x) =2x3 or f(x) = (x+1)/(x–1) for x ≠ 1. b. (+) Verify by composition that one function is the inverse of another. c. (+) Read values of an inverse function from a graph or a table, given that the function has an inverse. d. (+) Produce an invertible function from a noninvertible function by restricting the domain. 
Online Corse Hierarchy  7.2 
I Can Statements  I can find and determine the inverse of relations and functions. 
Standard  HSFBF.B.5 

Standard Description  5. (+) Understand the inverse relationship between exponents and logarithms and use this relationship to solve problems involving logarithms and exponents. 
Online Corse Hierarchy  9.2, 9.3, 9.4, 9.5 
I Can Statements  I can understand the inverse relationship between exponents and logarithms. I can use the properties of logarithms. I can solve growth and decay problems. 
Standard  HSFLE.A.1 

Standard Description  1. Distinguish between situations that can be modeled with linear functions and with exponential functions. b. Recognize situations in which one quantity changes at a constant rate per unit interval relative to another. 
Online Corse Hierarchy  2.3 
I Can Statements  I can recognize situations in which one quantity changes at a constant rate per unit interval relative to another. 
Standard  HSFLE.A.2 

Standard Description  2. Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two inputoutput pairs (including reading these from a table). 
Online Corse Hierarchy  2.4 
I Can Statements  I can construct different forms of linear functions given a graph, a description of a relationship, or two inputoutput pairs (including reading these from a table). 
Standard  HSFLE.A.4 

Standard Description  4. For exponential models, express as a logarithm the solution to abct = d where a, c, and d are numbers, and the base b is 2, 10, or e; evaluate the logarithm using technology. 
Online Corse Hierarchy  9.2, 9.4, 9.5 
I Can Statements  I can solve exponential and logarithmic equations and inequalities. 
Standard  HSFLE.B.5 

Standard Description  5. Interpret the parameters in a linear or exponential function in terms of a context. 
Online Corse Hierarchy  2.4, 9.1 
I Can Statements  I can interpret the parameters in linear and exponential function models in terms of their contexts. 
Standard  HSFTF.A.1 

Standard Description  1. Understand the radian measure of an angle as the length of the arc on the unit circle subtended by the angle. 
Online Corse Hierarchy  13.1 
I Can Statements  I can define the radian measure of an angle. 
Standard  HSFTF.A.2 

Standard Description  2. Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle. 
Online Corse Hierarchy  13.1 
I Can Statements  I can describe the importance of the unit circle for extending trigonometric functions to all real numbers. 
Standard  HSFTF.A.3 

Standard Description  3. (+) Use special triangles to determine geometrically the values of sine, cosine, and tangent for π/3, π/4, and π/6, and use the unit circle to express the values of sine, cosine, and tangent for π – x, π + x, and 2π – x in terms of their values for x, where x is any real number. 
Online Corse Hierarchy  13.2, 13.3, 14.1 
I Can Statements  I can find circular functions of angles. I can solve right triangle trigonometry. 
Standard  HSFTF.B.5 

Standard Description  5. Choose trigonometric functions to model periodic phenomena with specified amplitude, frequency, and midline. 
Online Corse Hierarchy  14.1 
I Can Statements  I can determine the trigonometric function that best models a situation based on period, amplitude, frequency, and midline. I can graph trigonometric functions. 
Standard  HSFTF.B.7 

Standard Description  7. (+) Use inverse functions to solve trigonometric equations that arise in modeling contexts; evaluate the solutions using technology, and interpret them in terms of the context. 
Online Corse Hierarchy  13.5, 14.6 
I Can Statements  I can define inverse trigonometric functions. I can solve trigonometric equations. 
Standard  HSFTF.C.8 

Standard Description  8. Prove the Pythagorean identity sin2 (θ) + cos2 (θ) = 1 and use it to find sin(θ), cos(θ), or tan(θ) given sin(θ), cos(θ), or tan(θ) and the quadrant of the angle. 
Online Corse Hierarchy  14.2, 14.3, 14.5, 14.6 
I Can Statements  I can prove trigonometric identities. 
Standard  HSFTF.C.9 

Standard Description  9. (+) Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems. 
Online Corse Hierarchy  14.4 
I Can Statements  I can prove sum and difference trigonometric identities. 
Mathematics  High School—Geometry
Standard  HSGSRT.C.6 

Standard Description  6. Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles. 
Online Corse Hierarchy  13.3 
I Can Statements  I can find and use trigonometric ratios. 
Standard  HSGSRT.C.7 

Standard Description  7. Explain and use the relationship between the sine and cosine of complementary angles. 
Online Corse Hierarchy  13.3 
I Can Statements  I can explain and use the relationship between the sine and cosine of complementary angles. 
Standard  HSGSRT.C.8 

Standard Description  8. Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems. 
Online Corse Hierarchy  13.3 
I Can Statements  I can solve problems using the Pythagoras Theorem. I can identify right triangles. 
Standard  HSGSRT.D.9 

Standard Description  9. (+) Derive the formula A = 1/2 ab sin(C) for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side. 
Online Corse Hierarchy  13.3 
I Can Statements  I can derive the formula A = 1/2 ab sin(C) for the area of a triangle 
Standard  HSGSRT.D.10 

Standard Description  10. (+) Prove the Laws of Sines and Cosines and use them to solve problems. 
Online Corse Hierarchy  13.4 
I Can Statements  I can prove the Laws of Sines and Cosines and use them to solve problems 
Standard  HSGSRT.D.11 

Standard Description  11. (+) Understand and apply the Law of Sines and the Law of Cosines to find unknown measurements in right and nonright triangles (e.g., surveying problems, resultant forces). 
Online Corse Hierarchy  13.4 
I Can Statements  I can apply the Law of Sines and the Law of Cosines to find unknown measurements in right and nonright triangles. 
Standard  HSGGPE.A.1 

Standard Description  1. Derive the equation of a circle of a given center and radius using the Pythagorean Theorem; complete the square to find the center and radius of a circle given by an equation. 
Online Corse Hierarchy  10.3 
I Can Statements  I can derive the equation of a circle of a given center and radius using the Pythagorean Theorem; complete the square to find the center and radius of a circle given by an equation. 
Standard  HSGGPE.A.2 

Standard Description  2. Derive the equation of a parabola given a focus and directrix. 
Online Corse Hierarchy  10.2 
I Can Statements  I can derive the equation of a parabola given a focus and directrix. 
Standard  HSGGPE.A.3 

Standard Description  3. (+) Derive the equations of ellipses and hyperbolas given the foci, using the fact that the sum or difference of distances from the foci is constant. 
Online Corse Hierarchy  10.4, 10.5 
I Can Statements  I can derive the equations of ellipses and hyperbolas given the foci, using the fact that the sum or difference of distances from the foci is constant. 
Standard  HSGGPE.B.5 

Standard Description  5. Prove the slope criteria for parallel and perpendicular lines and use them to solve geometric problems (e.g., find the equation of a line parallel or perpendicular to a given line that passes through a given point). 
Online Corse Hierarchy  2.4 
I Can Statements  I can find slopes of parallel and perpendicular lines. I can find the equation of a line parallel or perpendicular to the given line. 
Mathematics  High School—Statistics and Probability
Standard  HSSID.A.2 

Standard Description  2. Use statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range, standard deviation) of two or more different data sets. 
Online Corse Hierarchy  12.4, 12.7 
I Can Statements  I can compare the center (mean and median) and spread (interquartile range and standard deviation) of two or more data sets based on the shape of the data distribution. 
Standard  HSSID.A.3 

Standard Description  3. Interpret differences in shape, center, and spread in the context of the data sets, accounting for possible effects of extreme data points (outliers). 
Online Corse Hierarchy  12.4 
I Can Statements  I can interpret differences in shape, center, and spread based on the context of the data set and determine possible effects of outliers on these measures. 
Standard  HSSID.A.4 

Standard Description  4. Use a data set's mean and standard deviation to fit it to a normal distribution and estimate population percentages. Recognize that there are data sets for which such a procedure is inappropriate. Use calculators, spreadsheets, and tables to estimate areas under the normal curve. 
Online Corse Hierarchy  12.7 
I Can Statements  I can define the normal distribution, zscores. I can estimate areas under the normal curve. 
Standard  HSSID.B.6 

Standard Description  6. Represent data on two quantitative variables on a scatter plot, and describe how the variables are related. a. Fit a function to the data; use functions fitted to data to solve problems in the data context. Use given functions or choose a function suggested by the context. Emphasize linear, quadratic, and exponential models. b. Informally assess the fit of a function by plotting and analyzing residuals. c. Fit a linear function for a scatter plot that suggests a linear association. 
Online Corse Hierarchy  2.5 
I Can Statements  I can show two variable data on a scatter plot. I can describe the relationship between the variables. I can identify a function of best fit for the data set. I can assess the fit of a function to a data set. 
Standard  HSSIC.A.1 

Standard Description  1. Understand statistics as a process for making inferences about population parameters based on a random sample from that population. 
Online Corse Hierarchy  12.8 
I Can Statements  I can define samples. 
Standard  HSSIC.B.3 

Standard Description  3. Recognize the purposes and differences among sample surveys, experiments, and observational studies; explain how randomization relates to each. 
Online Corse Hierarchy  12.8 
I Can Statements  I can classify data and analyze samples and surveys. 
Standard  HSSIC.B.4 

Standard Description  4. Use data from a sample survey to estimate a population mean or proportion; develop a margin of error using simulation models for random sampling. 
Online Corse Hierarchy  12.8 
I Can Statements  I can find the margin of error. 
Standard  HSSCP.A.1 

Standard Description  1. Describe events as subsets of a sample space (the set of outcomes) using characteristics (or categories) of the outcomes, or as unions, intersections, or complements of other events (“or,” “and,” “not”). 
Online Corse Hierarchy  12.2 
I Can Statements  I can find theoretical and experimental probabilities. 
Standard  HSSCP.A.2 

Standard Description  2. Understand that two events A and B are independent if the probability of A and B occurring together is the product of their probabilities, and use this characterization to determine if they are independent. 
Online Corse Hierarchy  12.2 
I Can Statements  I can understand independent events. 
Standard  HSSCP.A.3 

Standard Description  3. Understand the conditional probability of A given B as P(A and B)/P(B), and interpret the independence of A and B as saying that the conditional probability of A given B is the same as the probability of A, and the conditional probability of B given A is the same as the probability of B. 
Online Corse Hierarchy  12.3 
I Can Statements  I can understand conditional probability. 
Standard  HSSCP.B.6 

Standard Description  6. Find the conditional probability of A given B as the fraction of B’s outcomes that also belong to A, and interpret the answer in terms of the model. 
Online Corse Hierarchy  12.3 
I Can Statements  I can find conditional probability. 
Standard  HSSCP.B.7 

Standard Description  7. Apply the Addition Rule, P(A or B) = P(A) + P(B) – P(A and B), and interpret the answer in terms of the model. 
Online Corse Hierarchy  12.3 
I Can Statements  I can find probabilities of mutually exclusive and overlapping events. I can find probabilities of independent and dependent events using the addition rule. 
Standard  HSSCP.B.8 

Standard Description  8. (+) Apply the general Multiplication Rule in a uniform probability model, P(A and B) = P(A)P(BA) = P(B)P(AB), and interpret the answer in terms of the model. 
Online Corse Hierarchy  12.3 
I Can Statements  I can apply the multiplication rule of probability. 
Standard  HSSCP.B.9 

Standard Description  9. (+) Use permutations and combinations to compute probabilities of compound events and solve problems. 
Online Corse Hierarchy  12.1 
I Can Statements  I can use permutations and combinations to compute probabilities. 
Standard  HSSMD.A.1 

Standard Description  1. (+) Define a random variable for a quantity of interest by assigning a numerical value to each event in a sample space; graph the corresponding probability distribution using the same graphical displays as for data distributions. 
Online Corse Hierarchy  12.5 
I Can Statements  I can define a random variable for a quantity of interest by assigning a numerical value to each event in a sample space. I can graph the corresponding probability distribution using the same graphical displays as for data distributions. 
Standard  HSSMD.A.3 

Standard Description  3. (+) Develop a probability distribution for a random variable defined for a sample space in which theoretical probabilities can be calculated; find the expected value. For example, find the theoretical probability distribution for the number of correct answers obtained by guessing on all five questions of a multiplechoice test where each question has four choices, and find the expected grade under various grading schemes. 
Online Corse Hierarchy  12.5 
I Can Statements  I can develop a probability distribution for a random variable defined for a sample space in which theoretical probabilities can be calculated. 
Standard  HSSMD.A.4 

Standard Description  4. (+) Develop a probability distribution for a random variable defined for a sample space in which probabilities are assigned empirically; find the expected value. For example, find a current data distribution on the number of TV sets per household in the United States, and calculate the expected number of sets per household. How many TV sets would you expect to find in 100 randomly selected households? 
Online Corse Hierarchy  12.5 
I Can Statements  I can develop a probability distribution for a random variable defined for a sample space in which probabilities are assigned empirically. 
Standard  HSSMD.B.6 

Standard Description  6. (+) Use probabilities to make fair decisions (e.g., drawing by lots, using a random number generator). 
Online Corse Hierarchy  12.7 
I Can Statements  I can compute normal probabilities. 
Standard  HSSMD.B.7 

Standard Description  7. (+) Analyse decisions and strategies using probability concepts (e.g., product testing, medical testing, pulling a hockey goalie at the end of a game). 
Online Corse Hierarchy  12.7 
I Can Statements  I can analyze decisions and strategies using probability concepts. 
Features
The ELC platform integrates wellknown children's learning pedagogies with standardaligned courses for grades 1 to 12. It features an easytouse workflow for learning, practicing, and assessing student performance  
Student features for Learning and Parent features for Monitoring and Support  

EWorkbook
Algebra 2
Inside the eWorkbook
CHAPTER 1:
Equations and Inequalities 
Expressions and Formulas
Properties of Real Numbers Solving Equations and Literal Equations Solving Absolute Value Equations Solving Inequalities Solving Absolute Value and Compound Inequalities 
CHAPTER 2:
Linear Relations and Functions 
Relations and Functions
Linear Equations in Two Variables Slope Writing Linear Equations Statistics: Using Scatter Plots Special Functions Graphing Inequalities 
CHAPTER 3:
Systems of Equations and Inequalities 
Solving System of Linear Equations in Two Variables
Solve Linear Equations in Three Unknown Solving a System of Linear Inequalities Linear Programming 
CHAPTER 4:
Matrices and Determinants 
Determinants and Cramer's Rule
Inverse of a Matrix Using Matrices to Solve System of Equations Vectors 
CHAPTER 5:
Quadratic Functions and Inequalities 
Graphing Quadratic Functions
Solving Quadratic Equations Graphically Solving Quadratic Equations by Factoring Complex Numbers Completing the Square and The Quadratic Formula Graphing and Solving Quadratic Inequalities 
CHAPTER 6:
Polynomial Functions 
Properties of Exponents
Polynomial Functions and Operations with Polynomials Dividing Polynomials Graphs of Polynomial Functions Factoring Trinomials Solving Polynomial Equations The Remainder and Factor Theorem Roots and Zeros 
CHAPTER 7:
Radical Equations and Inequalities 
Operations on Functions
Inverse Functions and Relations Square Root Functions and Inequalities and nth Roots Operations with Radical Expressions Rational Exponents Solving Radical Equations and Inequalities 
CHAPTER 8:
Rational Expressions and Equations 
Multiplying and Dividing Rational Expressions
Adding and Subtracting Rational Expressions Graphing Rational Functions Direct, Joint and Inverse Variation Solving Rational Equations and Inequalities 
CHAPTER 9:
Exponential and Logarithmic Relations 
The Exponential Function
Logarithmic Functions Properties of Logarithms Exponential and Logarithmic Equations and Inequalities Growth and Decay Functions (Applications) 
CHAPTER 10:
Conic Sections 
Midpoint and Distance Formula
Parabolas Circles Ellipses Hyperbolas Solving Quadratic Systems 
CHAPTER 11:
Sequences and Series 
Arithmetic Sequences and Series
Geometric Sequences and Series Recursion and Special Sequences The Binomial Theorem Mathematical Induction 
CHAPTER 12:
Probability and Statistics 
The Counting Principle, Permutations and Combinations
Introduction to Probability Addition and Multiplication Rules of Probability Measures of Dispersion Variance and SD Discrete Probability Distributions Binomial and Exponential Distribution Normal Distribution Sampling and Error 
CHAPTER 13:
Trigonometric Functions 
The Unit Circle and Measurement of Angles
Circular Functions of Angles Right Triangle Trigonometry The Law of Sines and Cosines Inverse Trigonometric Functions 
CHAPTER 14:
Trigonometric Graphs and Identities 
Graphing Trigonometric Functions
Trigonometric Identities Proving Identities in Trigonometric Function Sum and Difference Identities Double and Half Angle Identities Solving Trigonometric Equations 
Common Core Standards
ELC courses cover 100% of skills defined in Common Core Math Standards for Algebra 2. In addition to CCSS skills, our Algebra 2 course covers essential prerequisites skills from previous grades for review and more advanced skills for students who want to get ahead.
How to read the grade level standards?
Algebra 2 Domains Summary:
Code  Conceptual Category  Domains  Topics 

HSN  Number and Quantity  The Real Number System NRN 

The Complex Number System NCN 


Vector and Matrix Quantities NVM 


HSA  Algebra  Seeing Structure in Expressions ASSE 

Arithmetic with Polynomials and Rational Expressions AAPR 


Creating Equations ACED 


Reasoning with Equations and Inequalities AREI 


HSF  Functions  Interpreting Functions FIF 

Building Functions FBF 


Linear and Exponential Models FLE 


Trigonometric Functions FTF 


HSG  Geometry  Similarity, Right Triangles, and Trigonometry GSRT 

Expressing Geometric Properties with Equations GGPE 


HSS  Statistics and Probability  Interpreting Categorical and Quantitative Data SID 

Making Inferences and Justifying Conclusions SIC 


Conditional Probability and the Rules of Probability SCP 


Using Probability to Make Decisions SMD 

The following table summarizes what Math domains are covered in K12 grades:
Domains  Code  Grades 

Counting & Cardinality  CC  K 
Operations & Algebraic Thinking  OA  K,1,2,3,4,5 
Number & Operations in Base 10  NBT  K,1,2,3,4,5 
NUMBER & Operations  Fractions  NF  K,1,2,3,4,5 
Measurement & Data  MD  K,1,2,3,4,5 
Geometry  G  K,1,2,3,4,5,6,7,8 
Ratio & Proportional Relationships  RP  6,7 
Number System  NS  6,7,8 
Expressions & Equations  EE  6.7.8 
Functions  F  8 
Statistics & Probability  SP  678, 
Number & Quantity  HSN  912 
Algebra  HAS  912 
Functions  HSF  912 
Modeling  HSM  912 
Geometry  HSG  912 
Statistics & Probability  HSS  912 
Click here to discover the comprehensive Common Core State Standards.