Education Technology

# Activities

• ##### Subject Area

• Math: Algebra I: Linear Functions

9-12

60 Minutes

• ##### Device
• TI-89 / TI-89 Titanium
• TI-92 Plus / Voyage™ 200

TI Connect™

• ##### Accessories

TI Connectivity Cable

## Graphing Linear Functions

#### Activity Overview

In this activity, students understand the concepts associated with the graphs of linear functions. They find and plot points, sketch graphs, and calculate gradient and intercepts.

#### Before the Activity

• See the attached PDF file for detailed instructions for this activity
• Print pages 1 - 3 from the attached PDF file for your class
• #### During the Activity

Distribute the pages to the class.

• Complete the given table of values for the given equations
• Understand the concept of gradient
• Identify the y-intercept
• Use the calculator to set up a scatter plot for the points
• Repeat the steps with different types of graphs with both positive and negative gradients
• Look for patterns between the equation and its graph
• #### After the Activity

Students answer the questions on the activity sheet.

Review student results:

• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary