Question

Missy’s rotation maps point K(17, –12) to K’(12, 17). Which describes the rotation?
mc017-1.jpg counterclockwise rotation
mc017-2.jpg counterclockwise rotation
mc017-3.jpg clockwise rotation
mc017-4.jpg rotation

Answer 1

Hello there! Welcome to QuestionCove! @laszlo

Do you have any ideas?

Answer 2

The rules for

90 degrees counterclockwise is (x, y) --> (-y, x)
90 degrees clockwise is (x, y) --> (y, -x)
180 degrees clockwise and counterclockwise is (x, y) --> (-x, -y)

Answer 3

What do you think the answer is knowing the rules?