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OpenStudy (anonymous):
Find k if the lines 3x-5y=9 & 2x+ky=11 are a) parallel and b)perpendicular
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OpenStudy (anonymous):
by definition, parallel lines have the same slope. so to do so, for each equation, solve for y and get slope. k must be set such that their slopes are identical to make them parallel.
OpenStudy (anonymous):
by definition, product of slopes of perpendicular lines yield -1. so set k to such number.
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