Lesson 4

1. Lesson 4

1.3. Refresher

Mathematics 20-1 Module 4

Module 4: Quadratic Equations and Inequalities

Refresher

Use the following to review the topics you experienced difficulties with in the Are You Ready? section.

This is a play button that opens Formula.

To review isolating variables in equations, read the definition and examples at Formula.

This is a play button for Solving Quadratic Equations: Using Graphs.

Use Solving Quadratic Equations: Using Graphs to review how to solve quadratic equations using graphs and how to relate these solutions to the zeros of their corresponding quadratic functions.

Go back to the Are You Ready? section and try the questions again. If you are still having difficulty, contact your teacher.