Question

I need help with this

Answer 1

No

Explanation:

A function can not have two repeating x values.

Answer 2

The given relation is not a function.

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:

• A function is a relation in which no two ordered pairs have the same first component (x-coordinates) and different second components (y-coordinates).
• A function can only take on one output (y-value) for each input (x-value).

These are the reasons why the given relation is not a function.