The graph shows album sales (which include CD, vinyl, cassette, and digital albums) and music purchases (which include digital tracks, albums, singles, and music videos) in millions of units from 2004 through 2008. Use the graph to work Exercises 71 and 72.Locate the line on the graph that represents album sales. Repeat parts (a)(c) ofExercise 71. For part (a), x is the year and y is sales in millions of units.

Inverse Functions: In this section we deal with functions that have inverses. They occur as pair of inverse functions. An exponential function is a function of the form = A is a positive constant. What if x is an irrational number Compute up to some...