Respuesta :
In standard form, the equation is [tex](x-2)^2+(y+9)^2=9,[/tex] where we have plugged [tex](h,k,r)=(2,-9,3)[/tex] into the standard-form equation [tex](x-h)^2+(y-k)^2=r^2.[/tex] The center of this general form has coordinates [tex](h,k),[/tex] and the radius is [tex]r.[/tex]
