Advertising Expenditures The amounts of money spent on advertising in the Yellow Pages, either national or local, for the years 1990 to 2008 can be modeled by
A = −1.751x2 + 259.910x + 8635.242 million dollars, where x is the number of years after 1990.
a. Graph this function on the viewing window [0, 30] by [8000, 15,000].
b. Determine the amount of money spent on advertising in the Yellow Pages in 2004 and 2008.
c. Does this model predict that the amount spent will continue to increase through 2020?
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