Question

What is the variable of f(3) in the function below? f(x) =2^x

Answer 1

`\frak{Hi!}`

`\orange\hspace{300pt}\above2`

We have the expression -:

`\boldsymbol{\sf{f(x)=2^x}}`, and we're asked to find

`\boldsymbol{\sf{f(3)}}`.

To do that we put in the value for x (3)-:

`\boldsymbol{\sf{f(3)=2^3}}`.

Evaluate-:

`\boldsymbol{\sf{f(3)=2*2*2=8}}`

`\orange\hspace{300pt}\above3`

Answer 2

Hello !

We replace x by 3.

`f(3) = {2}^(3) = 8`

Have a nice day ;)