Determine Which of the Following Four Functions Might Be Used

Multiple Choice

Determine which of the following four functions might be used as a model for the data: linear: f(x) = mx + b; quadratic: f(x) = bx + c, a > 0; quadratic: f(x) = + bx + c, a < 0; polynomial, not quadratic or linear.
- Growth of revenue in Millions Year

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