Problem 1CC

a What is a one-to-one function? How can you tell if a function is one-to-one by looking at its graph? b If f is a one-to-one function, how is its inverse function f1 defined? How do you obtain the graph of f1 from the graph of f? c If f is one-to-one function and f(f1(a))0, write a formula for (f1)(a).

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