slope of all lines perpendicular to y= -5/2 x

FMMurphy

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Mar 12, 2006
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Would the slope of all lines perpendicular to y= -5/2 x be 2/5? The definition says that lines are perpendicular if and only if their slopes are negative recipricals of each other.
 

tkhunny

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Apr 12, 2005
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Another way to say that: Multipy them and you'll get -1

Slope -5/2
Perpendicular Slope +2/5

Multiply them (-5/2)*(2/5) = -10/10 = -1 -- Yup.
 
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