Use the equation and plug in the center and the radius.

##(x+2)^2+y^2=25##

Recall the equation for a circle:

##(x-h)^2+(y-k)^2=r^2##

Where ##(hk)## is the center of a circle with radius ##r##.

Therefore a circle with radius ##5## centered at ##(-20)## has the equation:

##color(red)((x+2)^2+y^2=25##

And the graph would look like

graph{(x+2)^2+y^2=25 [-14.24 14.24 -7.12 7.12]}