Respuesta :

At a given function:

[tex]\text{ f(x) = 2x + 1}[/tex]

At f(0), it means that we substitute x by 0.

We get,

[tex]\text{ f(x) = 2x + 1}[/tex][tex]\text{ f(0) = 2(0) + 1}[/tex][tex]\text{ f(0) = 1}[/tex]

Therefore, f(0) = 1.