1. Write your function, replacing f(x) with y
2. Solve for x
3. Switch the variables
4. Replace y with "f-1(x)."
PROBLEM 1
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PROBLEM 2
I think inverse functions are easy, because you are solving an algebraic expression. The one thing I may forget to do, is to not change f(x) to y.
ADDITIONAL RESOURCES
http://www.mathsisfun.com/sets/function-inverse.html
