Question

s The amount of freight transported by rail in the United States was about
580 billion ton-miles in 1960 and has been increasing at a rate of 2.32% per year
since then.
a. Write a function representing the amount of freight, in billions of ton-miles,
transported annually
(1960 = year 0) .
b. Graph the function.
c. In what year would you predict that the number of ton-miles would have
exceeded or would exceed 1 trillion
(1000 billion) ?