Question 718829
{{{x^2+(y+2)^2=25}}}


{{{(x-0)^2+(y-(-2))^2=25}}}


{{{(x-0)^2+(y-(-2))^2=5^2}}}


Compare the last equation to {{{(x-h)^2+(y-k)^2=r^2}}}


We see that h = 0, k = -2 and r = 5


So the center is (0, -2) and the radius is 5 units.