Answer:
The answer is option C.$0.18. The line rises from 18 means it is the initial cost point.
Explanation:
We can see that when x = 0, y = 18
This means at 0 minutes or when the call just connects, it is charged 18 pennies or cent.
So, each call's connecting fee cost is $0.18. The line rises from 18 means it is the initial cost point.