Question

A skating rink charges an hourly rate plus a fee to rent skates. The graph shows the total cost, y, as a function of the number of hours skated, 2.
>> Describe the initial value of the function.
45 y
40
The initial value is 5. It represents
35
the fee to rent skates
30
>> Complete the table to show the fee to rent skates.
Total Cost ($)
25
20
15
?
?
10
5
0
0
1
2
3
4
Skating Time (h), x
Total Cost ($). y

Answer 1

The initial value is y(0) = 5, which is the skate rental fee ($5).

Completed table (Total cost y = 10x + 5):

- x = 0 → y = 5
- x = 1 → y = 15
- x = 2 → y = 25
- x = 3 → y = 35
- x = 4 → y = 45