Question 808135
Perpendicular lines have negative reciprocal slopes
Given L1: y = 5x + 3
a line L2 perpendicular to L1 will have slope m = (-1/5)
Given point p=(x2,y2) on L2, use the point-slope form to write L2's equation
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y - y2 = (-1/5)(x - x2)
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