106k views
4 votes
ASAP PLS

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.

P′(1, 5)
P′(−1, −5)
P′(5, −1)
P′(−5, 1)

2 Answers

4 votes

Answer:

D

Explanation:

User Woot
by
7.8k points
4 votes

To find the image vertices of P' after rotating polygon PSRT 90 degrees counterclockwise, we can use the rotation formula:


(x', y') = (-y, x)\\

where
(x, y) are the coordinates of the preimage vertex and
(x', y')\\ are the coordinates of the image vertex after rotation.

For vertex
P(1, 5), we have:


x' = -y = -(5) = -5


y' = x = 1

Therefore, the image vertex of P' is
(-5,1), which corresponds to answer choice D.

User Stanley Ulili
by
7.6k points