Question

Find the equation of the circle with center (2, -6) and radius 4.
A.x2 + y2 = 4
B.x2 + y2 = 16
C. (x - 2)2 + (y + 6)2 = 16
D.(x + 2)2 + (y - 6)2 = 16

Answer 1

circle general graphing form, w/ center at (h,k) and radius r
(x-h)2 + (y-k)2 = r2
So here, C is the right answer.