Question

Choose the correct center and radius for the circle with the equation x2 + (y − 8)2 = 49. A. center (0, 8); radius 49 B. center (8, 0); radius 7 C. center (0, −8); radius 7 D. center (0, 8); radius 7

Answer 1

D

Explanation:

the center is (0,8)

(to solve this just flip the signs on the constants being added to x and y (there is an invisible constant of 0 being added to the x))

the radius is 7 (or √49)