Help! I have to graph my answer to this problem: ADFG has vertices D (–2, 4), F (–3,1), and G (–1, 2). Find the vertices of the image after the rotation of 180° about the origin.

Answer 1

after a 180° rotation
(x,y) ----> (-x,-y)

so
D(-2,4) -----> D'(2,-4)
same for the other points,

it is really that easy.