What is the coordinate points of (9,3) after a rotation of 90 degrees clockwise 180 degrees clockwise and 270 degrees clockwise

To rotate a point 90 degrees clockwise, the new coordinate points can be found using the following formulas:

90 degrees clockwise:
(x', y') = (y, -x)
(9,3) --> (3,-9)

180 degrees clockwise:
(x', y') = (-x, -y)
(9,3) --> (-9,-3)

270 degrees clockwise:
(x', y') = (-y, x)
(9,3) --> (-3,9)