Question

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

option #1:(x, y)→ (-y, x)

option #2:(x, y)→ (y, -x)

option #3:(x, y)→ (y, x)

option #4:(x, y)→ (-x, -y)

Explanation:

A 90° counterclockwise rotation about the origin transforms (x, y) to (-y, x).

Answer:

Option #1: (x, y)→ (-y, x)