Question

If point A{-1, -1) is rotated 180 about the origin, what will be its new position?°a. (1, 1) b. (-1, -1) c. (1, -1) d. (1, -1)

Answer 1

a

Explanation:

Under a rotation about the origin of 180°

a point (x, y ) → (- x, - y ) , thus

A(- 1, - 1 ) → A'(1, 1 )