Education Technology

# Activities

• ##### Subject Area

• Math: Algebra II: Inequalities
• Math: College Algebra: Linear Systems and Matrices
• Math: Developmental Mathematics - College: Systems of Linear Equations

9-12

20 Minutes

• ##### Device
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS
• ##### Software

TI-Nspire™
TI-Nspire™ CAS

3.0

## Border Patrol

#### Activity Overview

In this activity, students will graph one linear inequality and then graph a system of linear inequalities as they apply to an area of land. Students will practice graphing systems of inequalities and determining if a points lies in the solution. In the extension, students are challenged to write a system of inequalities that describe the area of Mississippi.

#### Key Steps

• Students are given a system of inequalities that represent a fenced-in yard. They will be able to graph all of the inequalities except x ≥ 0. Explain to students that this inequality would shade everything to the right of the y-axis. When entering the other inequalities students can type >= or <=, or they can insert ≥ and ≤ using the Symbol menu.