# Chapter 5: Quadratic Functions

Created by: CK-12

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**Quadratic Functions**

In this chapter we explore functions that are no longer linear. We will introduce a quadratic equation or an equation where the largest value is squared. In addition, we will learn how to solve a quadratic equation: by factoring, using square roots, completing the square, and the Quadratic Formula. We will also introduce complex, or imaginary, numbers. Lastly, we will analyze the graph of a quadratic and use it to approximate data.

## Chapter Outline

- 5.1. Solving Quadratics by Factoring
- 5.2. Solving Quadratics by Using Square Roots
- 5.3. Complex Numbers
- 5.4. Completing the Square
- 5.5. The Quadratic Formula
- 5.6. Analyzing the Graph of a Quadratic Function

### Chapter Summary

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## Description

This chapter covers solving quadratic equations, complex numbers, and analyzing graphs of quadratic equations.

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## Date Created:

Jan 25, 2013## Last Modified:

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