Pentagon ABCDE is shown on the coordinate plane below. If pentagon ABCDE is rotated 180° around the origin to create pentagon A’B’C’D’E’, what is the ordered pair of point D’? (-1, 2) (2, 1) (1, -2) (-2, -1)
@Calcmathlete .. help please?
Meh...I stink at rotations...although I do know how to do this one, I don't know how to explain it.. @ganeshie8 care to try explaining it?
me too... i get dyslexic with rotations :/ @Calcmathlete , correct me if its wrong : An ordered pair (x, y) becomes (-x, -y) after 180 degree rotation so the ordered pair (1, -2) becomes (-1, 2)
I believe so. I don't do it that way. I keep track of distances in relation to rotation...kind of like a mental distance rotation. I believe that is the answer though.
yeah thats right :D thankyou soo much
np :)
Same here :)
Join our real-time social learning platform and learn together with your friends!