# 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?

$O = \left(4 , 0\right) , r = 5$
${\left(x - a\right)}^{2} + {\left(y - b\right)}^{2} = {r}^{2}$
Center is $\left(a , b\right)$, radius is $r$.