Question 904460
The general equation for a circle centered at (h,k) with a radius R is ,
{{{(x-h)^2+(y-k)^2=R^2}}}
The first case,
{{{(x-(-1))^2+(y-(-5))^2=6^2}}}
{{{(x+1)^2+(y+5)^2=36}}}
Now do the second one the same way.