# Chapter 4: Graphing Linear Equations and Functions

**Basic**Created by: CK-12

The ability to graph linear equations and functions is important in mathematics. In fact, graphing equations and solving equations are two of the most important concepts in mathematics. If you master these, all mathematical subjects will be much easier, even Calculus!

This chapter focuses on the visual representations of linear equations. You will learn how to graph lines from equations and write functions of graphed lines. You will also learn how to find the slope of a line and how to use a slope to interpret a graph.

Weather, such as temperature and the distance of a thunderstorm can be predicted using linear equations. You will learn about these applications and more in this chapter.

- 4.1.
## The Coordinate Plane

- 4.2.
## Graphs of Linear Equations

- 4.3.
## Graphs Using Intercepts

- 4.4.
## Slope and Rate of Change

- 4.5.
## Graphs Using Slope-Intercept Form

- 4.6.
## Direct Variation

- 4.7.
## Linear Function Graphs

- 4.8.
## Problem-Solving Strategies: Read a Graph; Make a Graph

- 4.9.
## Chapter 4 Review

- 4.10.
## Chapter 4 Test

### Chapter Summary

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