Lesson Materials

## Lesson 3-1: Quadratic Equations (Review)

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## Objective:

The student will be able to solve quadratic equations by factoring and using the quadratic formula.

1. To the left is the graph of a quadratic equation in graphing form. You may change the values for a, h & k.
2. Look at the graph. Graphs show us the y-values for each x-value. When we are asked, "When does the quadratic equation equal zero?", we are asked to name the x-values where the y-values are zero.
3. On a coordinate plane, where do the y-values equal zero?
4. In this section you will be solving quadratic equations. How many times might a quadratic equation equal zero? Can you imagine situations when the equation cannot equal zero?

Thinkquest: Factor: Online notes from Thinkquest.com on factoring polynomials. Thinkquest: Factor
Thinkquest: Complex: Online notes from Thinkquest.com on simplifying complex numbers. Thinkquest: Complex
Thinkquest: Solve: Online notes from Thinkquest.com on solving quadratic equations by factoring and using the quadratic formula. Thinkquest: Solve

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