The table below shows the projected values (in millions of dollars) of hardback college
Chapter 3, Problem 73(choose chapter or problem)
The table below shows the projected values (in millions of dollars) of hardback college textbooks sold in the United States for the years 2007 to 2009. (Source: U.S. Census Bureau) Year Value 2007 4380 2008 4439 2009 4524 (a) Create a system of linear equations for the data to fit the curve where is the year and corresponds to 2007, and is the value of the textbooks. (b) Use Cramers Rule to solve your system. (c) Use a graphing utility to plot the data and graph your regression polynomial function. (d) Briefly describe how well the polynomial function fits the data.
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