Determine which of the following four functions might be used as a model for the data: linear:  quadratic:  quadratic:  polynomial, not quadratic or linear. IA Robotics Year

A. Polynomial, not quadratic or linear
B. f(x) = mx + b
C. f(x) = ax2 + bx + c, a > 0
D. f(x) = ax2 + bx + c, a < 0


Answer: C

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