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.

- A = (3,5), B = (1,2)
- A = (-1,4), B = (6,-3)
- A = (-6,-2), B = (-1,-4)
- A = (-2,5), B = (-2,-3)
- A = (3,4), B = (0,4)

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