Question

Given a circle has the equation `(x-4)^2 + (y)^2 = 25` what are the coordinates of the center and the length of its radius?

Answer 1

`O = (4, 0), r = 5`

Explanation:

`(x - a)^2 + (y - b)^2 = r^2`

Center is `(a, b)`, radius is `r`.