Question

The circle below is centered at the point (-1,3) and has a radius of length 4

What is the equation?

Answer 1

(x-h)^2 + (y-k)^2 = r^2 where h & k are the x,y values of the center point

(x + 1)^2 + (y-3)^2 = 4^2
(x + 1)^2 + (y-3)^2 = 16