Question

The odometer in a car measures the number of miles driven by the car since it was made. During the trip, the odometer in Anita‘s car is modeled by the function Y=9500+55X where X represents the number of hours driven during the trip and y represents the odometer reading in miles. What is the meaning of the rate change in this function?

Answer 1

The given function is y=9500+55x, where x is in hours driven and y is in miles.

Therefore, the slope of the function is

`\frac{miles}{number\text{ of hours driven}}`

The answer is the number of miles driven each hour during the trip, the first option.