Answer:
see explanation
Step-by-step explanation:
Assuming the rotation is about the origin
under a counterclockwise rotation of 90° about the origin
a point (x, y ) → (- y, x ) , then
(0, 0 ) → (0, 0 ) ← remains unchanged
(0, 4 ) → (- 4, 0 )
(3, 0 ) → (0, 3 )
(3, 4 ) → (- 4, 3 )
