How to use slope to determine parallel and perpendicular lines?

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asked Sep 12, 2017 58.8k views

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VBNight · Answer 1 · 2017-09-19T12:33:52+0000

The slope of parallel lines are the same and the slope of perpendicular lines are negative reciprocal

example: parallel, slope line 1: 2 slope line 2: 2
perpendicular, slope line 1: 2 slope line 2: -1/2

How to use slope to determine parallel and perpendicular lines?

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