Which of the following ordered pairs represents the initial value of the function?

Question

The Lakeside Marina charges a $35 rental fee for a boat in addition to charging $15 per hour.

 

You can represent the situation with the following equation: y=15x+35

1. (0, 15).
2. (0, 35)
3. (0, 45)
4. (0, 50

the options

Answer 1

We are asked for the 'initial value of the function'. In other words, when x is zero, what is y?

Remember y (the total cost of the boat rental) is a function of x, (the number of hours the boat is used). In the context of the problem, the initial value of the function is the cost of the boat rental before the "clock starts".

Hope that makes sense!

Answer 2

The initial value of the function is represented by (0,35).

Because $35 is the initial amount that you have to pay to rent the boat. And, then you add the amount depending of the number of hours that you use it.

y = 15x + 35.