Question

The equation is x^2+(y+5)^2=81. find the center and radius

Answer 1

The center is (0,-5) and the radius is 9

Explanation:

The equation of a circle can be given by

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

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

(x-0)^2 + (y- -5) ^2 = 9^2

The center is (0,-5) and the radius is 9