whats a 90 degree rotation of a point at -8, 2
(x, y) → (-y, x)
So it would be (-2,8).
Rotate about what point?
Clockwise or anticlockwise?
clockwise
whats a 90 degree rotation of a point at (-8, 2)
If we rotate it 90° clockwise, the new-point is in the first quadrant at (8, 2)
If we rotate it 90° counter-clockwise, the new point is in the third quadrant at (-2,-8)
