Question

The graph represents a functional relationship.

Which value is an input of the function?
–14
–2
0
4

Answer 1

Answer: D) 4

Explanation:

Answer 2

The value of 4 is an input of the function

Explanation:

Define the variables

Let

x ----> the independent variable or input value

y ----> the dependent variable or output value

Looking at the graph

The domain of the graph (all possible values of x) is equal to the interval

[1,∞)

`x\geq 1`

All real numbers greater than or equal to 1

The range of the function (all possible values of y) is equal to the interval

(-∞,3]

`y\leq 3`

All real numbers less than or equal to 3

therefore

The value of 4 is an input of the function