Problem

BUSINESS: U.S. Computer Sale? Recently, computer sales in the U.S. have been growing appro...

BUSINESS: U.S. Computer Sale? Recently, computer sales in the U.S. have been growing approximately linearly. In 2001 sales were 55.2 million units, and in 2006 sales were 75.7 million units.

a. Use the first and last (Year, Sales) data points (1,55.2) and (6, 75.7) to find the linear relationship y = mx + b between x = Years Since 2000 and y = Sales (in millions).


b. Interpret the slope of the line.


c. Use the linear relationship to predict sales in the year 2015.

Source: Euromonitor International

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