Answer:
No, because x=-1 is assigned to more than one y; those y's are 0 and 2.
Explanation:
A set of points is a function if there is only one y assigned to an x.
A set of points that has an x that gets assigned to more than one y is not a function.
Here we have the latter because x=-1 is assigned to more than one y; those y's that x=-1 is assigned to is 0 and 2. Therefore the set is not a function.