Unit 9 Study Guide 5 points
2. A mechanic drops a wrench from a flying helicopter. The height of the
wrench above the ground as a function of time since it dropped is
represented by the function below. What type of function does it
represent? What is the average rate of change over the interval [4, 10)?
f (x) = -1672 + 1900
A. Linear function: - 1344
B. Quadratic function: -1344
c. Quadratic function: -224
D. Exponential: 224