Consider the function. f(x)=\frac{x+7}{x} (a) Find the inverse function of f. f^-1(x) =__________ (b) Use a graphing utility to graph f and f^-1 on the same set of coordinate axes.

(c) Describe the relationship between the graphs. The graphs of f and f^-1 are reflections of each other in the line _______ (d) State the domain and range of f and f^-1. (Enter your answers using interval notation.) Domain of f=________ Range of f =______________ Domain of f^-1 =_________ Range of f^-1=__________