Consider the function f(x) = 5+ 2+ 4 a) Sketch the graph of f(I). b) Is f one-to-one? Explain. c) If f is one-to-one, then find a formula for the inverse function, f-() d) Sketch the graph of f () on the same set of axes you used in part a. e) What is the domain of f (x)? f) What is the range of f (x)