Answer:
The two tables attached (3 and 4 of your list here) represent inverse functions.
Explanation:
If (x1, y1) is a member of a functional relation, then (y1, x1) is a member of its inverse function. The two tables that have the x- and y- rows swapped are the one attached. That's the pair you're looking for.
Here, they are your 3rd and 4th attachments.