Algebra II.

Find the point(s) of intersection. List all of the solutions.

The line:

x -2y = 0

&

The circle:

(x-2)^2 + (y+2)^2 = 36

For the circle I think the radius is 6 and the center is (2,-2). From there I know that x = 2y but I get lost when substituting it in.