Question

A figure is rotated 180°. If one of the points on the image is G'(4, -8), what were the coordinates of G?

Answer 1

When you rotate 180 degrees, you multiply the x and y values by -1. so the points of G is (-4, 8)

Answer 2

`G = (-4,8)`

Explanation:

Let assume that rotation is centered at origin. A rotation of 180° means that G' is the antiparallel version of G. That is:

`G' = - G`

`(4,-8) = -G`

`G = -(4,-8)`

`G = (-4,8)`