Rotate the point (4,1)(4, 1)(4,1) by −90∘-90^\circ−90∘ (90° clockwise) about the origin.
(1,−4)(1, -4)(1,−4)
(1,4)(1, 4)(1,4)
(−1,4)(-1, 4)(−1,4)
(−4,−1)(-4, -1)(−4,−1)