$\"\"$

Find relation is a function.

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

The coordinates are $\"\"$ .

The element $\"\"$ in the domain is paired with both $\"\"$ and $\"\"$ in the range.

For $\"\"$ equals $\"\"$ , there is more than one possible value for $\"\"$ .

Therefore,the coordinates represent is not a function.

No, the relation is not a function.

$\"\"$

The coordinates represent is not a function.

No, the relation is not a function.