Write an equation of the circle with center, 9-7 and radius 12.

The equation of a circle is:

(x - h) ² + (y - k) ² = radius²

where (h, k) is the center.

Assuming your center is (9, 7) your equation is:

(x - 9) ² + (y - 7) ² = 144

Assuming your center is (9, - 7) your equation is:

(x - 9) ² + (y + 7) ² = 144