Pentagon ABCDE is shown on the coordinate plane below: B 7 C 765 A 5 321 +++++ ++ +++ -8-7-6-5-4-3-2-1 + 1 2 3 4 5 6 7 8 -3 -4 -5 100 # -6 -7 H++ E D If pentagon ABCDE is rotated 180° around the origin to create pentagon A'B'C'D'E', what is the ordered pair of point A'?