Find relation is a function.

A function is a relationship between input and out put function there is exactly one output for each input.

Observe the table:

For each member of the domain, there is only one member of the range,

So this table represents a function.

It does not matter if more than one element of the domain is paired with one element of the range.

Therefore, the table represent is a function.

The relation is a function.

The table represent is a function.

The relation is a function.