Algebra 2: Intermediate Algebra

Quadratic Equations and Inequalities Video Review Lessons

The Basics of Quadratics
• An Introduction to Quadratics
• Solving Quadratics by Factoring
Graphs of Quadratics
• Finding x- and y-Intercepts
• Nice-Looking Parabolas
• Graphing Parabolas
Solving by Completing the Square
• Solving by Completing the Square
• Completing the Square: Another Example
• Finding the Vertex by Completing the Square
Writing Quadratic Equations
• Using the Vertex to Write the Equation
• Building a Polynomial Equation from Its Solutions
Solving with the Quadratic Formula
• Proving the Quadratic Formula
• Using the Quadratic Formula
• Predicting Types of Solution from the Discriminant
• Using the Discriminant to Graph Parabolas
Equations Quadratic in Form
• Solving for a Squared Variable
• Finding Real Number Restrictions
• Solving Fancy Quadratics
• Horizontal Parabolas
Formulas and Applications
• Solving a Quadratic Geometry Problem
• Solving with the Pythagorean Theorem
• Solving a Motion Problem
• Solving a Projectile Problem
• Solving Other Problems
Nonlinear Inequalities
• Solving Quadratic Inequalities
• Solving Quadratic Inequalities: Another Example