# Activities

• • • ##### Subject Area

• Math: PreAlgebra: Linear Functions
• Math: Algebra I: Linear Functions

• ##### Author 6-8

30 Minutes

• ##### Device
• TI-73 Explorer™
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition
• TI-Navigator™

## Gettin' Linear: Phase 1

#### Activity Overview

Designed for beginning Algebra and Pre-Algebra students to introduce the concepts of slope and y-intercepts, this activity has students try to match a given line by typing in the equation. In the process, they will build their understanding of the meanings of slope and y-intercept, and writing equations in slope-intercept form. Using Activity Center, students try to write an equation that matches a given line.

#### Before the Activity

Prerequisite skills: Students should understand how to graph a function on the coordinate plane from an input-output table and know that the graph of a linear function is a line.

#### During the Activity

In this TI-Navigator Activity Center activity, students will determine the equation of a line, given the graph of the line. See the attached .pdf file for complete instructions and the attached .act file for the Activity Center settings.

#### After the Activity

Try the related activities, Gettin' Linear: Phase 2 in which students determine the slope of a line.