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August 4, 2015

Homework Help: math

Posted by Luke on Friday, June 1, 2007 at 7:25am.

what would x^2+y^2-4x+2y=0 (Equation for a cirlce) be in
r^2=(x-h)^2(y-k)^2 form?

tnx

I will start you off...

x^2+y^2-4x+2y=0
x^2-4x+y^2 +2y =0
x^2-4x+ 4 + y^2 +2y+ 4 =+ 4+ 4
(x^2-4x+ 4) + (y^2 +2y+ 4) =8

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