Respuesta :

You have the following expression for the function f(x):

f(x) = 2x + 3

In order to calculate the value of f(4), just replace x=4 into the function f(x) and simplify it:

f(4) = 2(4) + 3

f(4) = 8 + 3

f(4) = 11

Hence, the answer is:

A) 11