If a relation is a function, how many y-values can any one x-value have?
Not a function, see solution.
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 consider the given relation.
x=-2
This means that for every value of y, the value of x is -2. The given relation does not meet the definition of a function. Therefore, x=-2 is not a function.
