Respuesta :

we have the function:

f(x)=4x  -->  y= 4x

To find the inverse we have to change "x" by "y" and "y" by "x", as following:

x=4y

Now, we isolate "y":

Answer:

The required inverse of the function f(x) is :

[tex]f^{-1}(x)=\frac{x}{4}[/tex]

Step-by-step explanation:

The function is given to be f(x) = 4x

To find the inverse first take f(x) as y and equate it equal to the 4x

Now, let y = 4x

Now, interchange the places of x and y

⇒ x = 4y

Then solve for the value of y and the obtained value of y is the required inverse of the given function f(x)

[tex]\frac{x}{4}=y\\\\\implies f^{-1}(x)=\frac{x}{4}[/tex]

Hence, The required inverse of the function f(x) is :

[tex]f^{-1}(x)=\frac{x}{4}[/tex]