Problem

Operating Expenses The operating expenses of Amazon.com increased from $2....

Operating Expenses The operating expenses of Amazon.com increased from $2.0 billion in 2006 to $4.4 billion in 2009.

a. Use this information to find a linear model for Amazon’s operating expenses E (in billions of dollars) as a function of time t in years since 2000.

b. Give the units of measurement and interpretation of the slope.

c. Use the model from part (a) to estimate the 2007 operating expenses. (The actual 2007 operating expenses were approximately $2.5 billion.)

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