Question

Evaluating functions I don’t understand this one and I can’t find it no where else

Answer 1

The function given is

`f(x)=4x`

We are to find the inverse of the function

let f(x) =y

`y=4x`

Then, we make x the subject of the formula from here

`\begin{gathered} y=4x \\ x=(y)/(4) \\ x=(1)/(4)y \end{gathered}`

Then The inverse of the function becomes

`f(x)=(1)/(4)x`

Therefore the fourth option is correct