(Modeling) U.S. Airline Passengers The number of fliers on scheduled fligh...

(Modeling) U.S. Airline Passengers The number of fliers on scheduled flights of U.S. airline companies was approximately 548 million in 1995, 739 million in 2005, and 704 million in 2009. (Source: Air Transport Association of America.) Here are three possible models for these data, where x = 0 corresponds to the year 1995.

The table shows each equation evaluated at the years 1995, 2004, and 2009. Decide which equation most closely models the data for these years.