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Mathematics 20 Online
OpenStudy (anonymous):

Geometry help! 10.If the slope of line l is -2/5,what is the slope of line m so that line l is perpendicular to line m.? -2/5 -5/2 2/5 5/2

OpenStudy (alexandervonhumboldt2):

5/2 because slopes of per lines are negative reciprocals

OpenStudy (anonymous):

thanks!

OpenStudy (isaiah.feynman):

@sugarrmamma13 Perpendicular lines have the property that the product of their slopes equal -1 |dw:1418856177795:dw|

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