# Inequalities

4 videos

3 skills

Algebraic inequalities (inequalities with variables) are useful for describing real-world situations. Learn how to write inequalities and graph them on the number line.

### How to test solutions to inequalities

VIDEO
5:10 minutes

A solution to an inequality makes that inequality true. Learn how to test if a certain value of a variable makes an inequality true.

### Testing solutions of inequalities

PRACTICE PROBLEMS

Practice plugging in values to inequalities and checking to see if the inequalities hold true.

### How to plot inequalities on a number line

VIDEO
6:14 minutes

Learn how to graph an inequality on a number line to indicate which values make it true.

### Example of plotting a simple inequality on a number line

VIDEO
1:34 minutes

Learn how to plot a simple inequality on a number line. The example used in this video is x < 4.

### Inequalities on a number line

PRACTICE PROBLEMS

Practice writing equations of inequalities graphed on number lines. Identify number line graphs of inequalities.

### How to describe real-world situations with inequalities

VIDEO
2:54 minutes

Learn how to write inequalities to model real-world situation.

### Writing inequalities to describe real-world situations

PRACTICE PROBLEMS

Practice writing inequalities with variables to describe real-world situations.