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# Classroom Activities

• ##### Subject Area

• Math: Algebra I: Linear Inequalities

9-12

45 Minutes

• ##### Device
• TI-Nspire™ CX
• TI-Nspire™ CX CAS
• TI-Nspire™ Navigator™
• TI-Nspire™ Apps for iPad®
• ##### Software

TI-Nspire™
TI-Nspire™ CAS

3.9

• ##### Report an Issue

Linear Inequalities in Two Variables

Updated on 06/12/2015

#### Activity Overview

Learn the basics of graphing linear inequalities.

#### Objectives

• Discover the basics of graphing a linear inequality, e.g., the differences among the graphs of y > ax + b, yax + b, y < ax + b, and yax + b
• Use a test point to check if the correct half plane is shaded
• Sketch the graphs of linear inequalities and select a test point to verify the solution set

#### Vocabulary

• Linear inequality
• Half plane

#### About the Lesson

This lesson involves the basics of graphing linear inequalities. As a result, students will:

• Formulate the basic concepts of graphing inequalities.
• Graph systems of inequalities.