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I need help with identifying parallel and perpendicular lines from equations.
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I need help with identifying parallel and perpendicular lines from equations.

I need help with identifying parallel and perpendicular lines from equations.-example-1
User Thisisrandy
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If the slopes have the same magnitude and sign, but with a different y-intercept... the lines are parallel.

If the slopes have the same magnitude but have an opposite sign... the lines are perpendicular.
User Zapoo
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