We want to perform a rotation of 90° clockwise about the point (2, -1), the graph of the rotation can be seen at the end of the answer.
So the first thing we need to identify is the center of rotation, which is (2, -1).
Now we perform the rotation about this point, we only care for one vertex of the triangle, let's only rotate the one that is at (3, -1).
A rotation of 90° about the point (2, -1) will move this vertex to:
(2, -2)
Following this we can similarly rotate the other two vertices, then we can graph these to get:
If you want to learn more, you can read:
https://brainly.com/question/11392539
