## Babynini one year ago Finding the average speed over time intervals.

1. Babynini

2. Babynini

I need help knowing how to get the average speed equation from the information given. I know: Average speed = dist traveled/time traveled.

3. Babynini

@peachpi :)

4. Babynini

@Loser66

5. anonymous

yeah so that is what you have to compute for each one you are going to need some technological assistance, like a calculator first off, what do you get when x = 1? you are going to use that number for each one, so lets get that first

6. Babynini

how do I find that out?

7. anonymous

replace x by 1

8. Babynini

you mean t?

9. anonymous

x, t whatever

10. Babynini

xD it equals 57.17

11. anonymous

ok so now the first one will be $\frac{58\times 2-.83\times 2^2-57.17}{2-1}$

12. Babynini

55.51 ?

13. anonymous

lets use this

14. anonymous
15. anonymous

yeah you got it, but i wrote it in kind of a silly way in wolfram so now you can use that for all of them replace the 2 by various different values for t

16. Babynini

Yay! so the values of t are the second number in the interval things given?

17. Babynini

[1,1.5] [p, t] like that?

18. anonymous

here is the same thing, only i replaced all the "2" by "1.5" http://www.wolframalpha.com/input/?i=%2858*1.5-.83*1.5^2-57.17%29%2F%281.5-1%29

19. Babynini
20. anonymous

lol yeah looks exactly like what i wrote

21. Babynini

hahah perfect, ok. Sorry, I think we posted at the same time xD

22. anonymous

now you can use it as a template for all the rest

23. anonymous

yeah you got it right on the first try aint technology wonderful?

24. Babynini

Dude, no joke. So for part b of the problem?

25. Babynini

Nevermind, I got it :)