# Intermediate Algebra Lessons

- Absolute Value Equations
- Absolute Value Functions: How to Graph
- Absolute Value Inequalities
- Arithmetic Sequence: Definition
- Arithmetic Sequence: Formula
- Arithmetic Sequence: Practice Problems
- Completing the Square
- Completing the Square: More Examples
- Descartes’ Rule of Signs
- Distance Formula
- Distance Formula: How to Derive
- Dividing Polynomials: Long Division Method
- Dividing Polynomials: Synthetic Division Method
- Domain and Range of Linear and Quadratic Functions
- Domain and Range of Radical and Rational Functions
- Even, Odd, and Neither Functions
- Factorial: Notation, Formula, and Examples
- Factorial: Dividing
- Factorial: Simplifying with Variables
- Factorial: Zero Factorial
- Factoring Binomial: Sum/Difference of Two Cubes
- Factoring Binomial: Sum/Difference of Two Cubes (Practice Problems)
- Factoring Binomial: Difference of Two Squares
- Factoring Binomial: Difference of Two Squares (Practice Problems)
- Factoring Trinomial: “Box” Method
- Factoring Trinomial: Easy Case
- Factoring Trinomial: Hard Case
- Graphing a Line (Quick Summary)
- Graph a Line Using Slope and y-Intercept
- Graph a Line Using Table of Values
- Graph a Line Using x and y Intercepts
- Graphing Linear Inequalities
- Graphing Linear Inequalities: Examples
- Graphing System of Linear Inequalities
- Graphing Vertical and Horizontal Lines
- Horizontal Line Test
- Linear Equations: Solving Two-Step Equations
- Linear Equations: Solving Multi-Step Equations
- Linear Inequalities: Solving Multi-Step Linear Inequalities
- Literal Equations
- Mean, Median, Mode, and Range
- Midpoint Formula
- Parallel and Perpendicular Lines: Find Their Equations
- Parallel and Perpendicular Lines: Their Slopes
- Polynomials: Addition and Subtraction
- Polynomials: Multiplying Binomials using FOIL Method
- Polynomials: Multiplication
- Quadratic Formula: How to Derive
- Radical Equations
- Radical Expressions: Adding and Subtracting
- Radical Expressions: Multiplying
- Radical Expressions: Rationalizing the Denominator
- Radical Expressions: Simplifying
- Rational Roots Test
- Relations and Functions
- Remainder Theorem
- Rules of Exponents
- Slope of a Straight Line: Types of Slope
- Slope of a Straight Line: Slope Formula
- Straight Line: Slope-Intercept Form
- Straight Line: Point-Slope Form
- Systems of Equations: Substitution Method
- Systems of Equations: Elimination Method
- Solving Quadratic Equations by Square Root Method
- Solving Quadratic Equations by Factoring Method
- Solving Quadratic Equations by the Quadratic Formula
- Solving Quadratic Equations by Completing the Square
- Variation: Direct
- Variation: Inverse
- Vertical Line Test
- x and y Intercepts