True or false f (x) is a function

Hello from MrBillDoesMath!
Answer:
True
Discussion:
From the diagram, f maps each x to a unique value so f is a function. One such possible possible function (but not the only one!) that does this is
f(x) = x/4
Thank you,
MrB
Answer:
TRUE
Step-by-step explanation:
A function is a map from a non empty set A to a non empty set B such that every element of A is mapped to a unique element of B.
As we can see from the picture that:
0 is mapped to 0
4 is mapped to 1
8 is mapped to 2
and 12 is mapped to 3
Hence, f(x) is a function