Question

Polygon PSRT is drawn with vertices at P (1, 5), S (1, 0), R (−2, −3), T (−4, 2).

Determine the image vertices of P′ if the preimage is rotated 90° counterclockwise.

Group of answer choices

No answer text provided.

P′(−1, −5)

P′(5, −1)

P′(−5, 1)

Answer 1

Rotation 90° counterclockwise about the origin sends (x,y) → (−y,x).
So P(1,5) → P′(−5,1).