Health Care Expenditures
The table shows annual personal health care expenditure (in billions of dollars) in the united states from 2011 through 2013 (Source Bureau of Economic Analysis).
Year | 2011 | 2012 | 2013 |
Amount
|
1765 | 1855 | 1920 |
(a) Create a system of linear equations for the data to fit the curve
(b) Use the Cramer’s Rule to solve the system.
(c) Use a graphing utility to plot the data and graph the polynomial function in the same viewing window.
(d) Briefly describe how well the polynomial function fits the data.
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