Question

Find the coordinates of the center and the length of the radius of the given circle.

I know how to do this, but I'm confused what the x or y is equal to. 1, 0, x, or y?

(x)^2 + (y)^2 = 16

center at point ( , )

radius = 4

Answer 1

the general form of a circle with center at (h,k) and radius r is:\[(x-h)^2 + (y-k)^2 = r^2\]In your problem, h = 0 and k = 0. So the center is at the origin, (0,0)