Respuesta :

it’s 28 because you are inputting 3 for x. 2^3 is 27, and then you add 1 so it would be 28.

If f(x) = 2x + 1, then f(3) =9.

What is a Function?

A function is a relation between a set of inputs having one output each. In simple words.

Solving the function:

We have

[tex]f(x)=2^{x} +1\\f(3)=2^3+1\\f(3)=8+1\\f(3)=9.[/tex]

Learn more about Functions:

https://brainly.com/question/2328150

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