Question

F (x)=2x-1find f (3)

Answer 1

Given the function:

`f(x)=2x-1`

We want to find f(3).

This means,

what is the value of the function, given, we put 3 into x of the function?

Simply, we put "3" into "x" of the function shown:

`\begin{gathered} f(x)=2x-1 \\ f(3)=2(3)-1 \\ f(3)=6-1 \\ f(3)=5 \end{gathered}`

The Answer is 5