Mass Transit (Historic) The table shows annual trips on U.S. mass transportations sy...

Mass Transit (Historic) The table shows annual trips on U.S. mass transportations systems between 1992 and 2003.

a. Describe the behavior suggested by a scatter plot of the data. What models are appropriate for this behavior?

b. Does the context suggest future behavior that will help determine which model to use? Explain.

c. Find a sine model for mass transit trips between 1992 and 2003 with input aligned to the number of years since 1990.

d. Why is the sine model the better choice of the possible models determined in part a?