# Ch 22: Praxis Middle School Math: Linear Equations

### About This Chapter

## Praxis Middle School Math: Linear Equations - Chapter Summary

If you're going to take the Praxis Middle School Math exam soon, you'll want to brush up on linear equations. Watch these lessons to review how to solve linear equations, identify their properties and graph lines. These lessons are taught by our expert instructors and are mobile device compatible so that you may have an effective and portable way to study:

- The process of writing linear equations
- Linear properties of slope and rate of change
- Properties of the Y-intercept and X-intercept of a line
- The four quadrants of the coordinate plane
- Significance of negative and positive slopes

To reinforce your retention of the information presented in these videos, read the lessons transcripts. You may then test your understanding of the material by taking the lesson quizzes. Review your quiz results to discover topics you don't fully understand and then use the video tags to return to and review the parts of the lessons that explained them.

### 1. What is a Linear Equation?

Most cars won't be able to run for more than 250,000 miles, so how much longer will your car live? Linear Equations are the most basic kind of algebraic function and can help you answer questions exactly like this. Learn about what they look like, how they come up in your life and why they are powerful tools.

### 2. How to Write a Linear Equation

Simply knowing how to take a linear equation and graph it is only half of the battle. You should also be able to come up with the equation if you're given the right information.

### 3. What is Slope? - Definition & Formulas

The slope is a measure of the steepness of a line, or a section of a line, connecting two points. In this lesson, you will use several different formulas for slope and learn how those formulas relate to the steepness of a line.

### 4. Slopes and Rate of Change

If you throw a ball straight up, there will be a point when it stops moving for an instant before coming back down. Consider this as we study the rate of change of human cannonballs in this lesson.

### 5. Y-Intercept: Definition & Overview

In this lesson, you will learn about the y-intercept, a particular point (or several points) on a graph where the line or curve touches or crosses the y-axis.

### 6. X-Intercept: Definition & Overview

In this lesson, you'll learn the definition of the x-intercept, the point in a graph where a line crosses the x-axis. We'll discuss how to find the x-intercept and look at a few examples of x-intercepts.

### 7. Graph Quadrants: Examples & Definition

The x-axis and y-axis of a graph divide the graph into four quadrants. Learn about the four quadrants, how they are different from each other, and how they are useful in understanding mathematical patterns.

### 8. Negative Slope Lines: Definition & Examples

In this lesson, you'll learn how to identify and calculate a negative slope. We will work with negative slope lines using general mathematical graphics and symbols, and we'll look at negative slope lines put to use.

### 9. Positive Slope: Definition & Example

In this lesson, you'll learn what slope is and see some examples of positive slope. You'll also learn how to measure a line's slope on a graph. Then you can test your new knowledge with a brief quiz.

### Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

### Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

### Other Chapters

Other chapters within the Praxis Middle School Mathematics (5169): Practice & Study Guide course

- Praxis Middle School Math: Number Basics
- Praxis Middle School Math: Rational Numbers
- Praxis Middle School Math: Properties of Numbers
- Praxis Middle School Math: Number Structure
- Praxis Middle School Math: Absolute Value
- Praxis Middle School Math: Equality
- Praxis Middle School Math: Arithmetic Operations
- Praxis Middle School Math: Introduction to Fractions
- Praxis Middle School Math: Operations with Fractions
- Praxis Middle School Math: Decimals
- Praxis Middle School Math: Percents
- Praxis Middle School Math: Ratios & Rate of Change
- Praxis Middle School Math: Proportional Relationships
- Praxis Middle School Math: Estimation
- Praxis Middle School Math: Scientific Notation & Exponents
- Praxis Middle School Math: Square Roots
- Praxis Middle School Math: Roots & Radicals
- Praxis Middle School Math: Algebra Basics
- Praxis Middle School Math: Principles of Algebra
- Praxis Middle School Math: Solving Word Problems
- Praxis Middle School Math: Functions
- Praxis Middle School Math: Solving Linear Equations
- Praxis Middle School Math: Patterns in Math
- Praxis Middle School Math: Graphing Functions
- Praxis Middle School Math: Polynomials
- Praxis Middle School Math: Quadratic Equations
- Praxis Middle School Math: Systems of Equations
- Praxis Middle School Math: Area, Perimeter & Volume
- Praxis Middle School Math: Properties & Theorems
- Praxis Middle School Math: Parallel, Perpendicular & Intersecting Lines
- Praxis Middle School Math: Properties of Triangles
- Praxis Middle School Math: Similarity & Congruence
- Praxis Middle School Math: Quadrilaterals
- Praxis Middle School Math: Polygons
- Praxis Middle School Math: Circles
- Praxis Middle School Math: Coordinate Geometry
- Praxis Middle School Math: Measurement
- Praxis Middle School Math: Geometric Construction
- Praxis Middle School Math: Data
- Praxis Middle School Math: Line Graphs
- Praxis Middle School Math: Data Presentation
- Praxis Middle School Math: Probability
- Praxis Middle School Math: Logic
- Praxis Middle School Math: Modeling
- Praxis Middle School Mathematics Flashcards