Question

A point is rotated270° about theorigin. The image ofthe point is (-11, 7).What are thecoordinates of thepreimage?A (7, -11)® (-7, -11) © (7,11)(11,7)

Answer 1

Rotation 270° about the origin transforms the point (x,y) into (-y,x). Then, if we rotate the point C, we get:

(7, 11) → (-11, 7)

So, the preimage is (7, 11)