(4, 2) ----> ( 2, 1)
(4 - 2, (2 - 1) ----> (2, 1)
That's a vertical -1 and horizontal of -2.
That's the last choice.
From BCD to B'C'D', vertical (y) translated 1 unit down (-1) and horizontal translated 2 units to the left (-2)
Lets find out
B(4, 2), B'(2, 1)
(x) ---> 4 - 2 = 2 and (y) --->2 - 1 = 1
Answer is D. last one
