Question

I'm trying to obtain the ordinary and general equation of the circumference that has as centre C (0,-2) point and its radius is 1 unity.
At first the eq. looks like this:
(x − h)2 + (y − k)2 = r 2
But I'm stuck with the next part of the process.

Thanks guys.

Answer 1

(h,k) is the center of the circle, and r=radius, so substitute in your known values:
(x - 0)^2 + (y - (-2))^2 = (1)^2
then simplify.

Answer 2

Okay, thanks