Determine which best describes the given relation.

Looking at this relation, we can easily see that it is not a function. That is because when looking at the x of -1, we see that it is assigned to output values. Since a function only gives one output to each input, we can say that the given relation is not a function because the input of -1 has two outputs of -2 and 1. 

Istg idk..if there all the same length there all the same number but use google