Algebra 2 made completely easy!

Our Algebra 2 tutors got you covered with our complete online help for Algebra 2, whether it’s for standard Common Core Algebra 2, EngageNY (Regents Examination) or EOC Algebra 2. Learn Algebra 2 with ease!

Aligned with your class or textbook, you will get Algebra 2 help on topics like Trigonometry, Factoring, Functions, Sequences and Series, Inequalities, Probability, Transformations and so much more. Learn the concepts with our video tutorials that show you step-by-step solutions to even the hardest algebra 2 problems. Then, strengthen your understanding with tons of Algebra 2 practice.

All our lessons are taught by experienced Algebra 2 teachers. You will find all your algebra 2 answers here. Let’s finish your homework in no time, and ACE that final.

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Common Questions
I’m taking Intermediate Algebra in high school. Is your Algebra 2 class compatible to my class?

Yes, Intermediate Algebra and Algebra 2 in high school are the same thing, just different naming. Or, if you are a student who is in a 10th grade Algebra 2 or sophomore Algebra 2 class, this is also the right course for you.

My teacher is using Glencoe Algebra 2. Can I use your site?

Most definitely! Our algebra 2 tutors cover all the topics you’ll find in your textbook. Other algebra 2 textbooks, such as McDougal Littell Algebra 2 and Holt McDougal Algebra 2, we have all their materials covered too.

My class is called Algebra 2 and Trigonometry. Which course should I sign up for?

Our Algebra 2 help should cover all you need to know for your class. However, if you need more help on trig, check out our Online Trigonometry help too. Your subscription gives you unlimited access to all math help in all courses.

What are the prerequisites for Algebra 2?

A prerequisite for this course is either Algebra 1 or Basic Algebra, and after you mastered Algebra 2, your follow up course should be either Pre-Calculus or Trigonometry.

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Algebra 2 Topics

We have plenty of free lessons for you to watch

1.Linear Equations

1.1Introduction to linear equations (free lessons)
1.2Applications of linear equations
1.3Solving absolute value equations

2.Inequalities

2.1Graphing linear inequalities in two variables (free lessons)
2.2Graphing quadratic inequalities in two variables
2.3Solving absolute value inequalities
2.4Graphing systems of quadratic inequalities

3.Functions

3.1Identifying functions
3.2Domain and range of a function (free lessons)
3.3Function notation (free lessons)
3.4Slope intercept form: y = mx + b (free lessons)
3.5Graphing from slope-intercept form y=mx+b
3.6Application of linear relations

4.Systems of Equations

4.1Determining number of solutions to linear equations (free lessons)
4.2Solving systems of linear equations by graphing
4.3Using elimination method to solve systems of equations
4.4Using substitution method to solve systems of equations
4.5Money related questions in linear equations (free lessons)
4.6Unknown number related questions in linear equations
4.7Distance and time related questions in linear equations
4.8Rectangular shape related questions in linear equations
4.9System of quadratic-quadratic equations
4.10Solving 3 variable systems of equations by substitution
4.11Solving 3 variable systems of equations by elimination
4.12Solving 3 variable systems of equations (no solution, infinite solutions)
4.13Word problems relating 3 variable systems of equations

5.Systems of Inequalities

5.1Solving absolute value inequalities
5.2Graphing linear inequalities in two variables (free lessons)
5.3What is linear programming?
5.4Linear programming word problems

6.Complex Numbers

6.1Introduction to imaginary numbers
6.2Complex numbers and complex planes
6.3Adding and subtracting complex numbers
6.4Complex conjugates
6.5Multiplying and dividing complex numbers
6.6Distance and midpoint of complex numbers
6.7Angle and absolute value of complex numbers

7.Factoring

7.1Multiplying monomial by monomial
7.2Factoring polynomials by grouping
7.3Factor by taking out the greatest common factor (free lessons)
7.4Factor by grouping
7.5Factor theorem
7.6Factoring difference of cubes
7.7Factoring sum of cubes

8.Quadratic Functions

8.1Characteristics of quadratic functions (free lessons)
8.2Finding the quadratic functions for given parabolas (free lessons)
8.3Solving quadratic equations by factoring
8.4Solving quadratic equations by completing the square
8.5Using quadratic formula to solve quadratic equations
8.6Nature of roots of quadratic equations: the discriminant

9.Polynomials

9.1Characteristics of polynomials (free lessons)
9.2Adding and subtracting polynomials
9.3Multiplying polynomial by polynomial
9.4Polynomial long division (free lessons)
9.5Polynomial synthetic division
9.6Remainder theorem
9.7Rational zeroes theorem
9.8Characteristics of polynomial graphs
9.9Repeated factors (Multiplicities) in polynomials
9.10Imaginary zeros of polynomials
9.11Determining the equation of a polynomial function
9.12Pascal's triangle
9.13Binomial theorem
9.14What is a polynomial function? (free lessons)
9.15Applications of polynomial functions
9.16Solving polynomial inequalities
9.17Fundamental theorem of algebra

10.Radical Functions and Expressions

10.1Squares and Square Roots (free lessons)
10.2Cubic and Cube Roots
10.3Evaluating and simplifying radicals
10.4Multiplying and dividing radicals
10.5Adding and subtracting radicals
10.6Rationalize the denominator
10.7Basic radical functions
10.8Transformations of radical functions
10.9Solving radical equations
10.10Operations with radicals (free lessons)
10.11Conversion between entire radicals and mixed radicals
10.12Adding and subtracting radicals (free lessons)
10.13Multiplying radicals (advanced)
10.14Solving radical equations (advanced)

11.Rational Exponents

11.1Power of a power rule (free lessons)
11.2Rational exponents (free lessons)

12.Rational Functions and Expressions

12.1Quotient rule of exponents
12.2Power of a product rule
12.3Power of a quotient rule
12.4Power of a power rule (free lessons)
12.5Negative exponent rule
12.6What is a rational function? (free lessons)
12.7Point of discontinuity
12.8Vertical asymptote
12.9Horizontal asymptote
12.10Slant asymptote
12.11Solving rational equations
12.12Solving rational inequalities
12.13Simplifying rational expressions and restrictions
12.14Adding and subtracting rational expressions (free lessons)
12.15Multiplying rational expressions
12.16Dividing rational expressions
12.17Applications of rational equations
12.18Simplifying complex fractions
12.19Partial fraction decomposition

13.Function Operations

13.1Function notation (free lessons)
13.2Inverse functions
13.3Multiplying radicals
13.4System of linear-quadratic equations (free lessons)

14.Families of Functions

14.1Transformations of functions: Horizontal translations
14.2Transformations of functions: Vertical translations
14.3Reflection across the y-axis: y=f(−x)y = f(-x) (free lessons)
14.4Reflection across the x-axis: y=−f(x)y = -f(x)
14.5Horizontal stretches in transformations
14.6Vertical stretches in transformations
14.7Combining transformations of functions
14.8Even and odd functions

15.Logarithms

15.1What is a logarithm?
15.2Converting from logarithmic form to exponential form (free lessons)
15.3Evaluating logarithms without a calculator
15.4Common logarithms
15.5Evaluating logarithms using change-of-base formula
15.6Natural log: ln
15.7Converting from exponential form to logarithmic form (free lessons)
15.8Product law of logarithms (free lessons)
15.9Solving logarithmic equations (free lessons)
15.10Logarithmic scale: Richter scale (earthquake)
15.11Logarithmic scale: pH scale
15.12Logarithmic scale: dB scale
15.13Finance: Future value and present value

16.Exponential and Logarithmic Functions

16.1Solving logarithmic equations (free lessons)
16.2Graphing exponential functions
16.3Graphing transformations of exponential functions
16.4Finding an exponential function given its graph
16.5Graphing logarithmic functions
16.6Finding a logarithmic function given its graph
16.7Finance: compound interest
16.8Continuous growth and decay
16.9Natural log: ln
16.10Solving exponential equations with logarithms

17.Angle Measures

17.1Converting between degrees and radians
17.2Angle in standard position
17.3Coterminal angles (free lessons)
17.4Reference angle

18.Trigonometry

18.1Solving first degree trigonometric equations (free lessons)
18.2Determining non-permissible values for trig expressions
18.3Solving second degree trigonometric equations
18.4Solving expressions using 45-45-90 special right triangles (free lessons)
18.5Solving expressions using 30-60-90 special right triangles
18.6Find the exact value of trigonometric ratios
18.7ASTC rule in trigonometry (All Students Take Calculus) (free lessons)
18.8Sine graph: y = sin x
18.9Cosine graph: y = cos x
18.10Tangent graph: y = tan x
18.11Cotangent graph: y = cot x
18.12Secant graph: y = sec x
18.13Cosecant graph: y = csc x
18.14Solving trigonometric equations involving multiple angles (free lessons)
18.15Solving trigonometric equations using pythagorean identities
18.16Solving trigonometric equations using sum and difference identities
18.17Solving trigonometric equations using double-angle identities
18.18Use sine ratio to calculate angles and side (Sin = oh\frac{o}{h} ) (free lessons)
18.19Using cosine ratio to calculate angles and side (Cos = ah \frac{a}{h} )
18.20Use tangent ratio to calculate angles and side (Tan = oa\frac{o}{a})
18.21Combination of SohCahToa questions (free lessons)
18.22Pythagorean theorem (free lessons)
18.23Unit circle (free lessons)
18.24Sine law
18.25Cosine law
18.26Word problems relating ladder in trigonometry
18.27Word problems relating guy wire in trigonometry
18.28Other word problems relating angles in trigonometry

19.Trigonometric Functions

19.1Sine graph: y = sin x
19.2Cosine graph: y = cos x
19.3Tangent graph: y = tan x
19.4Cotangent graph: y = cot x
19.5Secant graph: y = sec x
19.6Cosecant graph: y = csc x

20.Trigonometric Identities

20.1Quotient identities and reciprocal identities (free lessons)
20.2Sum and difference identities
20.3Pythagorean identities
20.4Double-angle identities (free lessons)

21.Sequences and Series

21.1Arithmetic sequences (free lessons)
21.2Geometric sequences
21.3Arithmetic series (free lessons)
21.4Infinite geometric series
21.5Geometric series
21.6Sigma notation

22.Probability

22.1Fundamental counting principle
22.2Probability
22.3Path counting problems
22.4Permutation vs. Combination
22.5Permutations
22.6Combinations
22.7Probability of independent events
22.8Probability with Venn diagrams

23.Statistics

23.1Influencing factors on data collection (free lessons)
23.2Median and mode
23.3Mean
23.4Range and outliers
23.5Application of averages

24.Parabolas

24.1Introduction to quadratic functions (free lessons)
24.2Quadratic function in general form: y = ax2+bx+cax^2 + bx+c
24.3Quadratic function in vertex form: y = a(x−p)2+qa(x-p)^2 + q
24.4Converting from general form to vertex form by completing the square
24.5Finding the quadratic functions for given parabolas (free lessons)

25.Introduction to Conic Sections

25.1Conics - Circle
25.2Conics - Parabola

26.Introduction to Matrices

26.1Notation of matrices
26.2Adding and subtracting matrices
26.3Multiplying a matrix by a scalar
26.4Multiplying a matrix by another matrix
26.5The three types of matrix row operations

27.Properties of Matrices

27.1Zero Matrix
27.2Identity Matrix
27.3Properties of matrix addition
27.4Scalar multiplication
27.5Matrix multiplication

28.Determinants and Inverses of Matrices

28.1The determinant of a 2 x 2 matrix
28.2The determinant of a 3 x 3 matrix (General & Shortcut Method)
28.3The inverse of a 2 x 2 matrix
28.4The inverse of 3 x 3 matrices with matrix row operations
28.5The inverse of 3 x 3 matrix with determinants and adjugate
28.62 x 2 invertible matrix
28.7Solving linear systems using Cramer's Rule
28.8Solving linear systems using 2 x 2 inverse matrices

29.Transformations with Matrices

29.1Transforming vectors with matrices
29.2Transforming shapes with matrices
29.3Finding the transformation matrix
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