Homework Help: math

Posted by sam on Sunday, September 20, 2009 at 4:26pm.

Could someone check my answer? I need to figure out the equation of the circle given the center of (-9,0) and radius of 7.
(x-(-9))^2 + (y-0)^2 = 7^2
answer(x+9)^2 + (y-0)^2 = 49
is this correct?

math - sam, Sunday, September 20, 2009 at 4:28pm
clarifications I would eliminate the (y-0)^2 to y^2 so the answer would be (x+9)^2 + y^2 = 49..... right

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