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March 30, 2015

March 30, 2015

Posted by **Peggy** on Thursday, February 22, 2007 at 7:21pm.

(a)x-2y=4

(b)2x+y=2

(a)-2y=-x-4

-y=-x/2-2

(b)y=-2x+2

I have that they are perpindicular. My question is this:

is -x/2 the reciprocal of 2x?

yes

Thank You

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