Answer:
x^2 + (y-8)^2 = 16
Step-by-step explanation:
1. Start with the formula for a circle:
(x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center and r is the radius
2. Plug in values for the center coordinates and the radius:
(x-0)^2 + (y-8)^2 = 4^2
3. Simplify:
x^2 + (y-8)^2 = 16
