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Janu16

  • one year ago

Find the average rate of change for the given function from x=-1 to x=4.

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  1. Janu16
    • one year ago
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    This

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  2. Nnesha
    • one year ago
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    average rate of change = slope

  3. anonymous
    • one year ago
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    so x=-1 y= 5 x=4 y=-5

  4. Janu16
    • one year ago
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    Where is the 5 from

  5. anonymous
    • one year ago
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    you just read it of your y axis

  6. anonymous
    • one year ago
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    |dw:1437742695461:dw|

  7. Janu16
    • one year ago
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    So how do you find the slope? -5-5 and 4-1?

  8. anonymous
    • one year ago
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    no no

  9. anonymous
    • one year ago
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    you got a formula for that

  10. Janu16
    • one year ago
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    What formula

  11. anonymous
    • one year ago
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    (y2-y1)/(x2-x1)

  12. Janu16
    • one year ago
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    Thats what i did so what is y2 and y1

  13. anonymous
    • one year ago
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    you got two points found . so you take a value for x1 so we can take x1=-1 so y1= 5 right?

  14. Janu16
    • one year ago
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    So its -2?

  15. Janu16
    • one year ago
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    Ya i solved it and got -2

  16. anonymous
    • one year ago
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    then we fill in our other coordinates. x2=1 and y2 =-5

  17. Janu16
    • one year ago
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    Isnt x2=4?

  18. anonymous
    • one year ago
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    yes lol :p

  19. Nnesha
    • one year ago
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    sorry i was afk

  20. anonymous
    • one year ago
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    anyhow you just fill in your twoo coordinates you found (x1,y1) and (x2,y2) in your formula

  21. Janu16
    • one year ago
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    So it would be -5-5 which is -10 than 4- neg 1 which is 5 and you divide it than you have -2?

  22. Janu16
    • one year ago
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    Its ok Nnesha

  23. anonymous
    • one year ago
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    yes

  24. Janu16
    • one year ago
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    Ok thank you yall

  25. anonymous
    • one year ago
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    remember that you now have the slope but if u want an equation for this line the formula is y-y1=m(x-x1) and m is your slope you just calculated

  26. Janu16
    • one year ago
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    I just wanted the slope and ya you use standard equation form for the equation. Thx

  27. Janu16
    • one year ago
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    I mean point slope

  28. anonymous
    • one year ago
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    yes but it's very important to see the whole picture! :)

  29. Janu16
    • one year ago
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    Ya:)

  30. Janu16
    • one year ago
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    Can you helo me with another one?

  31. anonymous
    • one year ago
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    sure if i can :)

  32. Janu16
    • one year ago
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    Ok i will do it on new thread

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