Question

What is the new point when you rotate a geometric figure with point (5, 8) 270 degrees counterclockwise about the origin?
A. (-8, -5)
B. (-5, 8)
C. (8, -5)
D. (8, 5)

Answer 1

270° counterclockwise is the same as 90° clockwise, which sends (x, y) to (y, −x). So (5, 8) → (8, −5). Answer: C.