I need help on how to explain my answer.

Answer:
(1,-1)
Step-by-step explanation:
(1,-1) because if you subtract 5-6 you get -1 and 2-1 you get 1.
Answer:
if F where to move down 6 points then it would be 2, -1.
then if it where to move left 1 unit the coordinants for F prime would be
(1, -1)