What is the center of the circle represented by this equation? x^2 + (y + 9)^2 = 25 a) (3, 5) b) (0, 25) c) (9, 25) d) (0, -9)

The equation of the circle is in form:

(x-h)² + (y-k)² = r²

(h,k) are the center and r is the radius.

So from the given equation we can see that the center is at (0,-9).

Hope this helps :)

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