Question

Can you help me please?

Answer 1

Answer: A. TRUE

Step-by-step explanation:

For this exercise it is important to know that, by definition, a relation is a function if and only if each Input value has one and only one Outuput value.

In this case, you can observe in the picture attached, that:

1. The Input value $0$ has an unique Output value, which is $0$.

2. The Input value $4$ has an unique Output value, which is $1$.

3. The Input value $8$ has an unique Output value, which is $2$.

4. The Input value $12$ has an unique Output value, which is $3$.

Therefore, based on the definition shown at the beginning of this explanation, since each Input value of f(x) has only one output value, you can conclude that the f(x) is a function.