MATH HW HELP NEEDED ASAP

Question

The cost C(x)C(x), where x is the number of miles driven, of renting a car for a day is $23 plus $1.65 per mile.

What is the slope of the linear function and its units?  Select an answer miles per dollar, miles, dollars per mile, dollars  - select the correct units

What is the y-intercept and its units?  Select an answer miles, dollars  - select the correct units

What is the linear function, C(x)C(x)? C(x)=C(x)=   

Answer 1

Slope is a rate of change. For this rental car, the miles driven determine cost, so the unit will be dollars per mile. That way, when you multiply this slope by miles driven, you get the cost of driving that distance.

The y-intercept is the starting point for cost. Here, it's the fee associated with renting the car, so it will be in dollars.

From there, you can create an equation: the function C(x).

C(x) = [slope] * x + [y-intercept].

Good luck!