The table below lists the average size of U.S. farms, represented in terms of the number of

Question:

The table below lists the average size of U.S. farms, represented in terms of the number of years since 1997.
Year, x Average Size of U.S. Farms (in number of acres)
1997, 0 ........................ 431
2002, 5 ......................... 441
2009, 12 ........................418
a) Fit a quadratic function f 1x2 = ax2 + bx + c to the data, where x is the number of years since 1997.
b) Use the function to estimate the average size of U.S. farms in 2000 and in 2010.