Trig
posted by Don .
If the center of a circle is at
(2,2) with a radius of 4 the equation of the graph would be :
a) (x2)^2 + (y2)^2 = 16
b) (x+2)^2 + (y+2)^2 = 16
I think it would be b
is that correct?

Trig 
Reiny
I would put my money on a)
for centre (h,k) and radius r, the equation of the circle is
(xh)^2 + (yk)^2 = r^2
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