To find perpendicular slope, you take the opposite reciprocal of the slope you have been given. So the slope perpendicular to 3/5 is -5/3.
Kylie B.
asked • 01/03/20What is the slope of a line perpendicular to the line with a slope of 3/5
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Tabitha D. answered • 01/03/20
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Perpendicular lines have negative reciprocal slopes. That means the fraction is flipped and multiplied by negative 1. So if one line has a slope of 3/5, then a line perpendicular to it has a slope of -5/3.
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