Determine the graph of the circles given by the following equations.
\left(x-2\right)^2+\left(y-1\right)^2=4
\left(x-3\right)^2+\left(y+1\right)^2=4
\left(x+1\right)^2+\left(y-1\right)^2=9
\left(x+3\right)^2+\left(y-2\right)^2=4
\left(x+1\right)^2+\left(y-1\right)^2=\dfrac{1}{4}
\left(x-2\right)^2+\left(y-2\right)^2=9
\left(x-\dfrac{1}{2}\right)^2+\left(y-1\right)^2=1