Question

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

Explanation:

Step1: Recall rotation rule

For 90 - degree counter - clockwise rotation about origin, (x,y)→(−y,x).

Answer:

(x,y)→(−y,x)