How to determine if two functions are inverses?

Question

Edwards

Mathematics

16 February, 15:09

How to determine if two functions are inverses?

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Michael · Answer 1

You will compose the functions (that is, plug x into one function, plug that function into the inverse function, and then simplify) and verify that you end up with just "x". Here's what it looks like:Determine algebraically whether f (x) = 3x - 2 and g (x) = (x + 2) / 3 are inverses of each other.