Answer:
(x+8)^2 + (y-4)^2 = 3^2
or
(x+8)^2 + (y-4)^2 = 9
Explanation:
The diameter is 6, so the radius would be d/2 =3
The equation of a circle is
(x-h)^2 + (y-k)^2 = r^2
where (h,k) is the center and r is the radius
(x- -8)^2 + (y-4)^2 = 3^2
(x+8)^2 + (y-4)^2 = 3^2
or
(x+8)^2 + (y-4)^2 = 9