Question 1115678
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For many relatively simple functions like this one, you can find the inverse by knowing that an inverse function "gets you back where you started".<br>
The given function adds 19 to the input value.<br>
The inverse function gets you back where you started by doing the opposite operations in the opposite order.<br>
In this example, the given function has only one operation, addition.  The opposite of addition is subtraction.<br>
So the inverse function subtracts 19 from the input value.<br>
Answer: the inverse function is f^-1(x) = x-19.