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How Do You Know If A Line Is Perpendicular? [Solved]
If two non-vertical lines in the same plane intersect at a right angle then they are said to be perpendicular. Horizontal and vertical lines are perpendicular to each other i.e. the axes of the coordinate plane. The slopes of two perpendicular lines are negative reciprocals.
(Re-done video link in description) Determine if Equations are Parallel, Perpendicular, or Neither
This video covers one example on how to
How To Tell If Two Lines Are Parallel, Perpendicular, or Neither?
This algebra video tutorial explains how
Find the equation of a line perpendicular to a line through a point
Learn how to write the equation of a
