I am not sure if it is the best but heres one way to do it
9021 = N
N - 1274 = P
(9021) - 1274 = P
P = 7,747
Answer:
B.
Since it is mirrored, it can also be said that it is a reflection instead of simply a rotation. It is mirrored from left to right, therefore it is reflected about the y-axis. Lastly, it is true that it would have a translation left by 2 units, as you can see it needs to "travel 2 units" to read A'B'C'D'.