Understanding Equations of Parallel and Perpendicular Lines in Analytic Geometry

Equations of Parallel and Perpendicular Lines

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https://www.khanacademy.org/math/geometry/analytic-geometry-topic/parallel-and-perpendicular/e/line_relationships?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

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Missed the previous lesson?
https://www.khanacademy.org/math/geometry/analytic-geometry-topic/parallel-and-perpendicular/v/parallel-and-perpendicular-lines-intro?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

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