Freon Production (Refer to Exercise 73.) The following table shows estimat...

Freon Production (Refer to Exercise 73.) The following table shows estimated total Freon 22 production in various years since 2000.

a. Use exponential regression to model Freon production as a function of time in years since 2000, and graph the data points and regression curve. (Round coefficients to 3 decimal places.)

b. Fill in the missing quantity: According to the model, Freon production each year was ____ times that of the year before.

c. Use your model to estimate Freon production in 2009 to the nearest ton.

Exercise 73:

Freon Production The production of ozone-layer damaging Freon 22 (chlorodifluoromethane) in developing countries rose from 200 tons in 2004 to a projected 590 tons in 2010.

a. Use this information to find both a linear model and an exponential model for the amount F of Freon 22 (in tons) as a function of time t in years since 2000. (Round all coefficients to three significant digits.) HINT [See Example 2.]

Which of these models would you judge to be more appropriate to the data shown below:

b. Use the better of the two models from part (a) to predict the 2008 figure and compare it with the projected figure above.