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Function Definition: A function f(x) is one-to-one if it does not assign the same value to two different elements of its domain. - If f(x) is a 1-1 function, then it has an inverse function f defined by f (y)=x if f(x)=y, for all y in the range of f. - The domain of fl is the range of f, and the range of fl is the domain of f. - To find a formula for fl, we can set y = f(x), solve for x in terms of y, and set fl(y) = x. Question 1: Which the functions f(x), g(x) and h(x) is a one-to-one function? Circle the correct choice f(x) = -x5 g(x) = 2x] h(x) = [x] A. g(x) is a one-to-one function B. f(x) is a one-to-one function C. f(x) and g(x) are one-to-one functions D. h(x) is a one-to-one function