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 4346 2008 4405 2009 4490 (a) Create a system of linear equations for the data to fit the curve y = at² + bt + c, where t is the year and t = 7 corresponds to 2007, and y is the value of the textbooks. = 4346 = 4405 = 4490 (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
4346
2008
4405
2009
4490
(a) Create a system of linear equations for the data to fit the curve y = at?2 + bt + c, where t is the year and t = 7 corresponds to 2007, and y is the value of the textbooks.
= 4346
= 4405
= 4490
(b) Use Cramer's Rule to solve your system.
a =
b =
C =
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 4346 2008 4405 2009 4490 (a) Create a system of linear equations for the data to fit the curve y = at?2 + bt + c, where t is the year and t = 7 corresponds to 2007, and y is the value of the textbooks. = 4346 = 4405 = 4490 (b) Use Cramer's Rule to solve your system. a = b = C =
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