# Chapter 12: Rational Equations and Functions; Statistics

Difficulty Level:

**At Grade**Created by: CK-12

The final chapter of this text introduces the concept of **rational functions,** that is, equations in which the variable appears in the denominator of a fraction. A common rational function in the **inverse variation model,** similar to the direct variation model you studied in chapter 4 lesson 6. We finish the chapter with solving rational equations and using graphical representations to display data.

## Chapter Outline

- 12.1. Inverse Variation Models
- 12.2. Graphs of Rational Functions
- 12.3. Division of Polynomials
- 12.4. Rational Expressions
- 12.5. Multiplication and Division of Rational Expressions
- 12.6. Addition and Subtraction of Rational Expressions
- 12.7. Solution of Rational Equations
- 12.8. Surveys and Samples
- 12.9. Chapter 12 Review
- 12.10. Chapter 12 Test

### Chapter Summary

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## Description

This chapter covers rational functions and the operations of rational expressions. Students learn to graph rational functions, divide polynomials, and analyze surveys and samples.

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## Date Created:

Feb 22, 2012## Last Modified:

Apr 29, 2014
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