$\left(x-2\right)^2+\left(y-1\right)^2=9$\left(x-2\right)^2+\left(y-1\right)^2=9

$\left(x-2\right)^2+\left(y-1\right)^2=3$\left(x-2\right)^2+\left(y-1\right)^2=3

$\left(x+2\right)^2+\left(y+1\right)^2=9$\left(x+2\right)^2+\left(y+1\right)^2=9

$\left(x+2\right)^2+\left(y+1\right)^2=3$\left(x+2\right)^2+\left(y+1\right)^2=3