Solve the problem involving modeling with polynomial functions. The bar graph shows the number of dollars spent in Country X (in millions) on environmental protection programs during the years 1985 (x = 1), through 1995 . A graphing calculator was used to find the polynomial functions that best fit these data.(quadratic) y ? -0.010x2 + 0.346x + 5.253(cubic) y ? 0.005x3 - 0.102x2 + 0.805x + 4.697(quartic) y ? -3.497 × 10-4x4 + 0.013x3 - 0.169x2 + 1.00x + 4.53Use these three functions to predict the

Question

school enrollment for 1996. Compare the results to the actual value of $8.3 million.

A. The quadratic function gives 7.833, the cubic function gives 7.511, and the quartic function gives 8.407. The quartic function is the best predictor in this case.
B. The quadratic function gives 7.407, the cubic function gives 7.965, and the quartic function gives 8.309. The quartic function is the best predictor in this case.
C. The quadratic function gives 7.965, the cubic function gives 8.309, and the quartic function gives 7.407. The cubic function is the best predictor in this case.
D. The quadratic function gives 8.407, the cubic function gives 7.833, and the quartic function gives 7.511. The quadratic function is the best predictor in this case.

Answer 1

Answer: C