Question

True or false f (x) is a function

Answer 1

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 2

TRUE

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