To move the red line click on point A or B and use the up and down arrow keys.
Use the slope formula to find the slopes of the lines passing through the given points. Once finished, move points A and B (by first clicking on the point and then using the up and down arrow keys) to the given coordinates. Move the slider to 3 to check your work and answers.
Athena Matherly, November 7, 2006, Created with GeoGebra Updated by S.H. Lapinski
Please direct questions and comments to HCPS Mathematics Specialist Henrico County Public Schools, 2009