Click on the checkbox to show the inequality. Move the Test Point (T_{1}) to find the points that make the inequality true.

Change the values for the slope and y-intercept for each inequality. What do you notice about where the test point (T_{1}) is true?

S.H. Lapinski, Created with GeoGebra

Please direct questions and comments to HCPS Mathematics Specialist Henrico County Public Schools, 2009