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y = 2x - 3

slope = 2

perpendicular slope = -1/2

origin:  point (0,0)

want equation of line with slope = -1/2, passing through point (0,0)

point-slope form

y - y1 = m (x - x1)

y - 0 = (-1/2) (x - 0)

y = (-1/2)x
by Top Rated User (103k points)

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