## onegirl 2 years ago Can someone help please?

1. moser90

With

2. onegirl

5) A parking lot charges \$@ for each hour of portion of an hour, with a maximum charge of \$12 for all day. If f(t) equals the total parking bill for t hours, sketch a graph of y =f(t) for 0≤ t ≤ 24. Determine the limits as t -> 3.5 and t -> 4 of f(t), if they exist.

3. moser90

I am not sure just be patient someone will come along to help

4. onegirl

ok

5. moser90

I have always hated problems like this

6. onegirl

@Luis_Rivera umm can u help me now?

7. Infinyte

Can you turn this into a written equation?

8. onegirl

umm no

9. onegirl

@Mertsj can u help?

10. Mertsj

Reread your post. How much is charged for part of an hour?

11. onegirl

2 dollars

12. Mertsj

So for t hours, they charge 2t for t less than or equal to 6 because 12 is the maximum charge for the entire day.

13. onegirl

yes

14. Mertsj

So your graph should show a \$2 charge for 0<t<=1, \$4 charge for 1<t<=2, \$6 charge for 2<t<=3, \$8 charge for 3<t<=4, \$10 charge for 4<t<=5, \$12 charge for 5<t<=6 and for t > 6 a constant charge of \$12

15. onegirl

i dont under stand can u explain it?

16. Mertsj

|dw:1359403089521:dw|

17. Mertsj

And so on. Complete the graph.

18. onegirl

so it increase 2 dollars every time

19. Mertsj

Well I would say so since it is \$2 per hour. If you park for 3 to 4 hours, it will cost you 8 dollars. If you park 1 to 2 hours it will cost you 4 dollars.

20. onegirl

and how many hours will it go? or it just the matter of showing the amount you want in the cahrt?

21. Mertsj

What do the directions in you problem tell you? How many hours are you supposed to go?

22. onegirl

well its saying for t hours so its says the last is 12 dollars so 5 or 6?

23. Mertsj

|dw:1359403483186:dw|

24. Mertsj

sketch a graph of y =f(t) for 0≤ t ≤ 24.

25. Mertsj

How many hours does it say?

26. onegirl

24?

27. Mertsj

bingo

28. onegirl

ohh okay thank you!!

29. Mertsj

yw