Site US and Canada

Exploring Linear Equations

Published on 02/04/2009

Activity Overview

Students will enter "life expectancy" data into lists and set up scatter plots and trace the scatter plot to select two points. Secondly, they will use the points to calculate slope and write a linear equation. Finally, they will use the Transformation Graphing App to fit the data using a linear equation in slope-intercept form and analyze the meaning of the slope and the intercept in relationship to birth year and life expectancy.

Before the Activity

Provide each student with a copy of the attached .pdf document.

During the Activity

Follow the directions on the attached document.

After the Activity

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