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Mathematics 20 Online
OpenStudy (anonymous):

what must be true about the slopes of two perpendicular lines, neither of which is vertical?

OpenStudy (anonymous):

|dw:1337710350290:dw| If the slope of line A is 4/5, then the slope of line B is it's negative reciprocal so it would be -4/5

OpenStudy (anonymous):

I meant if the slope of line (b) is 4/5, then (a) would be -4/5 **sorry**

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