Education Technology

# Activities

• ##### Subject Area

• Math: Algebra I: Linear Functions

9-12

45 Minutes

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

TI-Nspire™ CX
TI-Nspire™ CX CAS

5.4

## Points & Lines & Slopes (Oh My!) - IB

Updated on 01/26/2023

#### Activity Overview

In this activity, students will use coordinates to better understand that relationship, as well as the relationship between coordinates of points and their quadrant locations, slopes and y-intercepts, and parallel and perpendicular lines.

#### Objectives

• Students will graph linear functions and determine properties such as slope and y-intercept, describe how both change as the graph is rotated and translated, and understand that the coordinates of a line are the solution set to the equation of the line.
• Students will show that lines with equal slopes are parallel and slopes that are negative reciprocals are perpendicular.
•  Students will try to make a connection with how to understand these topics in IB Mathematics courses and on their final assessments

#### Vocabulary

• Parallel
• Perpendicular
• Reciprocal
• Slope