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?

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