Question

Equation of a circle with center (0,−6) and radius 4 in general form.

Answer 1

x^2 + (y + 6)^2 = 4^2

Explanation:

The general form we need here is (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius.

If the center is at (0, -6) and the radius is 4, then the desired equation is

(x - 0)^2 + (y + 6)^2 = 4^2, or just

x^2 + (y + 6)^2 = 4^2