Question

Idk how to do this without an image honestly

Answer 1

9514 1404 393

Answer:

(x, y) ⇒ (x -m, y -n)

Explanation:

Reverse the arrow and solve for the x and y on the left:

(x +m, y +n) ⇒ (x, y)

This resolves to two relations:

x + m ⇒ x

x ⇒ x - m . . . . . subtract m

and

y + n ⇒ y

y ⇒ y - n . . . . . . subtract n

Putting these back together, we have ...

(x, y) ⇒ (x -m, y -n) . . . . . maps P'Q' to PQ

_____

The original translation was right m and up n. The reverse translation is left m and down n. That is what the rule shows.