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.