Question

Missy’s rotation maps point K(17, –12) to K’(12, 17). Which describes the rotation?

270° counterclockwise rotation
90° counterclockwise rotation
90° clockwise rotation
180° rotation

Answer 1

compare the (x,y) before the transformation (K) to the afterimage (K') to see which transformation applies

alternatively you can graph and see what the rotation is visually