Question

a figure is rotated 90 degrees counterclockwise about the origin. which of the following function mappings was applied? option #1 (x,y)→(y, -x) option #2 (x,y)→(-y,x) option #3 (x,y)→(-x, -y) option #4 (x,y)→(y,x) (1 point)

Explanation:

Step1: Recall rotation rule

The rule for a 90 - degree counter - clockwise rotation about the origin for a point $(x,y)$ is $(x,y)\to(-y,x)$.

Answer:

Option #2 $(x,y)\to(-y,x)$