i need this math 1

Question

Triangle ABC has vertices A(1,1), B(1,4) and C(3,1) and is rotated 180°°clockwise about the origin to create triangle A'B'C'. 

What are the coordinates of the vertices for triangle A'B'C' after the rotation?

Responses

Answer 1

Rotating 180° around the origin has the same effect as reflecting across the x- and y-axis. This would effectively switch the signs of each ordered pair.

A(1, 1) -> A'(-1, -1)

B(1, 4) -> B'(-1, -4)

C(3, 1) -> C'(-3, -1)