The following data represent the number of cigarettes in bil

The following data represent the number of cigarettes (in billions) exported from the United States by year.

Year

The table above were collected and studied by the Statistical Abstract of the United States, 2006.

a.) Let t be the number of years since 1995. Using a graphing utility, draw a scatter diagram of the data using t as the independent variable and the number of cigarettes as the dependent variable.

b.\') Choose two different points from the table above to find the exponential model.

b.) Using a graphing utility, build an exponential model from the data and verify that the exponential model found in part b. is correct.

d.) Graph the exponential function from part b. on the scatter diagram.

e.) Use the exponential function from part b. or b. to predict the number of cigarettes that will be exported from the United States in 2010.

**Note: when plugging in to calculator 1995: t = 0 ; 1998: t = 3 ; 1999: t = 4 and etc.

Solution