Answer:
(-9,3)
Step-by-step explanation:
If a point is rotated 270° clockwise that can translate to 90° counter-clockwise.
First, take your point and change the 'y' sign: (x,y) -> (x,-y)
Second, switch x and y: (-y,x)
So for this problem it would be:
(3,9) -> (3,-9) -> (-9,3)
