Work these problem.The accompanying graph shows Dell Computer’s revenue (in billions) of d...

Work these problem.

The accompanying graph shows Dell Computer’s revenue (in billions) of dollars from 1999 to 2007.†

(a) List the data points, with x = 9 corresponding to 1999.

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(b) Find the least-squares regression line that models the data.

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(c) If the trend shown continues, what will Dell earn in revenues in 2012?

†Momingstar.com.