Determine if Two Lines Are Parallel, Perpendicular or Neither Given Two Points (Neither)

This video explains how to determine if two lines are parallel, perpendicular, or neither given two points on each line.

 

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Determine if Two Lines Are Parallel, Perpendicular or Neither Given Two Points (Perpendicular)

This video explains how to determine if two lines are parallel, perpendicular, or neither given two points on each line.