Question 1185664
Your equation form,  {{{(x-A)^2+(y-B)^2=C}}}, is for center point of circle at   (A, B), and radius of size {{{sqrt(C)}}}.



Radius would be  size 3. Do a sketch and this is easier to see. 

{{{3*3=9}}}


{{{(x+3)^2+(y+3)^2=9}}}