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July 5, 2015

Homework Help: algebra

Posted by caduceus on Sunday, November 10, 2013 at 10:11pm.

Which choice could be the equation of a line perpendicular to the line represented by this equation?

y = 5

for this question, i put this:
y = -1/5x

but, it says i am wrong. how is that? 5 is 5/1, and so the negative reciprocal of 5/1 would be -1/5, right?

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