Question

what are the coordinates of the image of (2,-5) after a counterclockwise rotation of 90° about the origin

Answer 1

(- 5, - 2 )

Explanation:

Under a counterclockwise rotation about the origin of 90°

a point (x, y ) → (y, - x ), thus

(2, - 5 ) → (- 5, - 2 )