# Chapter 7: Equations, Inequalities and Functions

Difficulty Level:

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

### Introduction

In this chapter, students will engage with the following concepts: writing expressions and equations, simplifying expressions, solving one-step equations, solving two-step equations, solving inequalities, identifying and understanding functions and graphing functions.

Chapter Outline

- 7.1.
## Addition and Subtraction Phrases as Equations

- 7.2.
## Multiplication and Division Phrases as Equations

- 7.3.
## Single Variable Equations from Verbal Models

- 7.4.
## Simplify Sums or Differences of Single Variable Expressions

- 7.5.
## Simplify Products or Quotients of Single Variable Expressions

- 7.6.
## Simplify Variable Expressions Involving Multiple Operations

- 7.7.
## Single Variable Addition Equations

- 7.8.
## Single Variable Subtraction Equations

- 7.9.
## Single Variable Multiplication Equations

- 7.10.
## Single Variable Division Equation

- 7.11.
## Two-Step Equations from Verbal Models

- 7.12.
## Two-Step Equations and Properties of Equality

- 7.13.
## Inequalities on a Number Line

- 7.14.
## Two-Step Inequalities

- 7.15.
## Domain and Range of a Function

- 7.16.
## Input-Output Tables for Function Rules

- 7.17.
## Graphs of Linear Equations

- 7.18.
## Linear and Non-Linear Function Distinction

- 7.19.
## Linear and Non-Linear Patterns of Change

### Chapter Summary

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Description

This chapter covers: writing expressions and equations, simplifying expressions, solving one-step equations, solving two-step equations, solving inequalities, identifying and understanding functions and graphing functions.

Difficulty Level:

At Grade
Subjects:

Grades:

Date Created:

Nov 30, 2012
Last Modified:

Apr 29, 2016
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