Precalculus with limits The total numbers (in billions)
of miles traveled by motor vehicles in the United States from 1995 through 2002 are shown in the table. The time (in years) is given by t, with t =5 corresponding to 1995.
(a) Does f^-1 exist?
(b) If f^-1 exists, what does it represent in the context of the problem?
(c) If f^-1 exists, find f^-1 (2632)
(d) If the table was extended to 2003 and if the factory sales of digital cameras for that year was $2747 million, would f^-1 exist? Explain.