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. Year Value 2007 4325 2008 4384 2009 4469 (a) Create a system of linear equations for the data to fit the curve y = at? + bt + c, where t is the year and t = 7 corresponds to 2007, and y is the value of the textbooks. 4325 = 4384 = 4469 (b) Use Cramer's Rule to solve your system. a = b = C =

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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.
Year
Value
2007
4325
2008
4384
2009
4469
(a) Create a system of linear equations for the data to fit the curve y
at? + bt + c, where t is the year and t = 7 corresponds to 2007, and y is the value of the textbooks.
= 4325
= 4384
= 4469
(b) Use Cramer's Rule to solve your system.
a =
b =
с 3
Transcribed Image Text: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. Year Value 2007 4325 2008 4384 2009 4469 (a) Create a system of linear equations for the data to fit the curve y at? + bt + c, where t is the year and t = 7 corresponds to 2007, and y is the value of the textbooks. = 4325 = 4384 = 4469 (b) Use Cramer's Rule to solve your system. a = b = с 3
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