Answer:
True
Step-by-step explanation:
f(x) is a function because each of the x-values (on the left hand side) only has one possible y value that it can be matched with.
For example, 3 always and only results in 1 as the y-value
The y values on the right can have multiple x-values pointing to them and it will still be a function, but if an x-value on the right points to more than one, then f(x) would no longer be a function.
For example, both 6 and 9 (on the left) can point to 3 (on the right) and f(x) will be a function, but if 9 (on the left) pointed to both 0 and 1 (on the right), f(x) would not be a function.
