Answer:
(x + 1)^2 + (y - 3)^2 = 16.
Step-by-step explanation:
The standard form is
(x - h)^2 + (y - k)^2 = r^2 - (h, k) = center and r = radius
So we see with the given values our equation is:
(x - (-1))^2 + (y - 3)^2 = 4^2
(x + 1)^2 + (y - 3)^2 = 16.
