A circle with center on (0,-2) and radius of 9

(x)^2 + (y+2)^2 = 81

Step-by-step explanation:

The equation of a circle can be written in the form

(x-h)^2 + (y-k)^2 = r^2

where (h,k) is the center and r is the radius

(x-0)^2 + (y- -2)^2 = 9^2

(x)^2 + (y+2)^2 = 81

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