I need help with this

Answer:
No
Step-by-step explanation:
A function can not have two repeating x values.
Answer:
The given relation is not a function.
Step-by-step explanation:
The following relation: {(6, -1), (-4, 2), (5, 2), (4, 6), (6, 5)} is not a function because the ordered pairs (6, -1) and (6, 5) have the same domain.
By definition:
These are the reasons why the given relation is not a function.