Question

The point (5,-2) is rotated 90degrees about the orgin it’s image is what ?

Answer 1

If rotates 90 degrees clockwise then:
(x,y) -> (y,-x)
(5,-2) ->( -2,-5)


If rotates 90 degrees counterclockwise then:

(x,y) -> (-y,x)
(5,-2) -> ( 2,5)


Hope this helps!