A = (-3, 2) → (-3 + 2, 2 - 4) → (-1, - 2)
B = (1, 5) → (1 + 2, 5 - 4) → (3, 1)
C = (2, -3) → (2 + 2, -3 - 4) → (4, -7)
A’ = (-1, -2)
B’ = (3, 1)
C’ = (4, -7)
