relation is a function?

Question

Determine given relationis a function

{(-3, 1), (-2, 4), (-1, 7), (0, 10), (1, 13)}

Answer 1

Relation:

A relation is simply set of orderd pairs.

Function:

A function is a set of orderd pairs in which each x element has only one y element associated with it.

Given {(-3,1)(-2,4),(-1,7),(0,10),(1,13)}

In given function each x element has different images.

Given relation is a function.