NickR 2 years ago Based on the graphs of f(x) and g(x) below, answer the following questions. You should not approximate any of your answers. a) What is the average rate of change of f(x) over the interval 2.2≤x≤8 ? b) What is the average rate of change of g(x) over the interval 2.2≤x≤6.1 ?

1. NickR
2. saifoo.khan

Rate of change = slope.

3. saifoo.khan

idk how to do the first part. :S

4. NickR

so using the slope formula the second part would be ((4.9)+(2.9))/(6.1-2.2) correct?

5. saifoo.khan

Why + 2.9?

6. NickR

sorry -2.9 my bad that worked

7. saifoo.khan

Yes, now it's right.

8. NickR

ok i guess thats what was making the problem wrong thanks

9. NickR

and the first one is (0-2.9)/(8-2.2)

10. Nick_Black

@NickR u r right there first one is done this way

11. saifoo.khan

Why man? @Nick_Black

12. Nick_Black

well u draw a straight line from points 8-2.2 than take the slope

13. saifoo.khan

Don't you think the slope will be same then? D:

14. Nick_Black

it says average rate of change so drawing straight line gives u average

15. saifoo.khan

Ohh.

16. Nick_Black

tht does the slope means saif u should pay attention in sir Arif classes :P

17. Nick_Black

u should have payed attention

18. saifoo.khan

Haha. My bad bro. I used to sit back and relax. :/ And now you can see the disadvantages of doing that. :'(

19. Nick_Black

haha aur betho arsenal ke saath :P

20. saifoo.khan

Women.. Root of all evils. :/ @Nick_Black

21. Nick_Black

nah Distraction best route to failure