Slope and Equations of Lines through Points
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Algebra students need practice determining equations of lines given a pair of points, or the line parallel or perpendicular to a given line through a given point. This Demonstration, along with guiding worksheets or a teacher presentation, gives students a chance to see the relationships between these lines and points.
Contributed by: Tom Falcone (March 2011)
Open content licensed under CC BY-NC-SA
You can drag the two red points. Click the parallel or perpendicular check boxes to get a third point, which you can also drag. Zoom can be varied to include larger coordinate values.
Special thanks to Dr. Steven Broad, University of Notre Dame, for assistance.
"Slope and Equations of Lines through Points"
Wolfram Demonstrations Project
Published: March 7 2011