Question

Algebra 2 how do I do this?

Answer 1

$f^{-1}(x)=\frac{x}{3}$

In words:the inverse function is x divided by 3.

Step-by-step explanation:

We are given f(x)=3x and we need to find inverse of this function.

For finding inverse:

let y=3x

Now, swap the positions of x and y

x=3y

Now solve for y:

$y=\frac{x}{3}$

Now replace y with $f^{-1}(x)$

So, $f^{-1}(x)=\frac{x}{3}$

In words:the inverse function is x divided by 3.

Keywords: Inverse of Function

Learn more about Inverse of Function at:

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