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What is the output of the function f(x) = x + 21 if the input is 4?
When the input is 4, the output of f(x) = x + 21 is___

Respuesta :

r3t40

[tex]f(x)=x+21\Longrightarrow f(4)=4+21=\boxed{25}[/tex]

Answer:

When the input is 4, the output of f(x) = x + 21 is 25.

Step-by-step explanation:

The given function is

[tex]f(x)=x+21[/tex]

We need to find the output of the function if the input is 4. It meas we need to find the value of f(4).

Substitute x=4 in the given function.

[tex]f(4)=(4)+21[/tex]

[tex]f(4)=4+21[/tex]

After addition, we get

[tex]f(4)=25[/tex]

When the input is 4, the output of f(x) = x + 21 is 25.

Therefore the required answer is 25.