Pet Industry The table shows U.S. pet industry expenditures for selected years from 1994 to 2010.
Year | Expenditure (billions of $) |
1994 | 17 |
1996 | 21 |
1998 | 23 |
2001 | 28.5 |
2002 | 29.5 |
2003 | 32.4 |
2004 | 34.4 |
2005 | 36.3 |
2006 | 38.5 |
2007 | 41.2 |
2008 | 43.2 |
2009 | 45.5 |
2010 | 47.7 |
a. Find a linear model for the data, with x equal to the number of years after 1990, and discuss the fit.
b. Find a quadratic model for the data, with x equal to the number of years after 1990, and discuss the fit.
c. Use both models to predict the amount of money Americans will spend on their pets in 2015.
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