Question

If point (x, y) is rotated 90 degrees about the origin, the resulting point is (-y, -x).

True or false?

Answer 1

False

Explanation:

Take the point (2, 3) = (x, y)

Rotated 90º clockwise (3, -2) = (y, -x)

Rotated 90º counter clockwise (-3, 2) = (-y, x)

Neither rotation becomes (-3, -2)