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What's the inverse

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**What have you tried and where are you stuck?**

Also, Is that supposed to be:

> f(x) = x^2 - 6x

or is the formatting in the post correct?

If the function *is* meant to be a quadratic then the inverse (and whether or not one exists) will depend on the intended domain and codomain. For example, if f is defined as a function from the Reals to the Reals, it has no inverse.
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This is learn math. What have you done so far?
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Use the fact that f(f^(-1)(x))=x

Where f^(-1)(x)=inverse of f(x)

(You will also need to complete the square)

Edit:
(I just realized that there is no inverse function)
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Buy a subscription at symbolab. They give you steps for all problems in detail.
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The key is to switch the x and y, then solve for y.

To get you started:

f(x) can also be written as y

So, y = x\^2 - 6x

Now switch the x and y

x = y\^2 - 6y

How would you solve for y?

Complete the square.

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