Question

Given 4 coordinate points A(2, 0), B(4, 0), C(1, -2), D(5, -2). Enter the answer for the image that is rotated by 180° about the origin O.

A' = ( , )

B' = ( , )

C' = ( , )

D' = ( , )

Answer 1

each and every coordinate just shifts to the vertically opposite quadrant, so each abscissa and ordinate will change signs, that's all.

Answer 2

if you rotate the point (2, 0) 180 degrees about the origin, do you know where it will end up?