If a relation is a function, how many y-values can any one x-value have?
No.
Practice makes perfect
For a relation to be a function, each x-value can only be paired with one y-value, but one y-value can be paired with multiple x-values. Let's look at the given values.
x
y
3
7
4
2
3
2
5
1
If we examine the table, we can see that there is at least one x-value with multiple y-values. Therefore, the relation cannot be a function.
