Copy of Rotations

what happens to the coordinates when looking at the pre-image then the new rotation image for each rotation?

If the coordinate is (2, -1) what would it be after a rotation of 90 degrees clockwise?

If the coordinate is (2, -1) what would it be after a rotation of 180 degrees clockwise?

If the coordinate is (2, -1) what would it be after a rotation of 270 degrees clockwise?