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anonymous

  • one year ago

What is the average rate of change from x = −3 to x = 5? −1 0 1 8

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @nincompoop

  3. anonymous
    • one year ago
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    @acxbox22

  4. AbdullahM
    • one year ago
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    What are the y-values when x=-3 and x=5

  5. anonymous
    • one year ago
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    um i dont knew how to find those

  6. AbdullahM
    • one year ago
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    So, go to your graph and see when x=3, what the y-value is on the line.

  7. anonymous
    • one year ago
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    y is -1?

  8. AbdullahM
    • one year ago
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    Correct, y=-1 for both x=-3 and x=5

  9. AbdullahM
    • one year ago
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    Do you know the slope formula?

  10. acxbox22
    • one year ago
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    y2-y1 average rate of change= ----- x2-x1

  11. AbdullahM
    • one year ago
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    Or, do you know the property of the slopes of horizontal lines?

  12. acxbox22
    • one year ago
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    or like said, slope average rate of change between two points is just the slope of the secant line going through the points

  13. anonymous
    • one year ago
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    so is it -1-(-3) 5-(-1)

  14. AbdullahM
    • one year ago
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    No, it isn't. Make sure to put the points in the correct place in the formula.

  15. acxbox22
    • one year ago
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    no, y2 is -1 and y1 is -1

  16. anonymous
    • one year ago
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    -1-(-1) -3-5

  17. acxbox22
    • one year ago
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    yes now what is it?

  18. AbdullahM
    • one year ago
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    Note: x/ 0 = undefined 0/x = 0

  19. anonymous
    • one year ago
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    y=0 x=-8

  20. AbdullahM
    • one year ago
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    And 0/-8 =?

  21. acxbox22
    • one year ago
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    so 0/-8 which is equal to?

  22. anonymous
    • one year ago
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    so its 0

  23. AbdullahM
    • one year ago
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    Correct

  24. anonymous
    • one year ago
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    is that the answer?

  25. AbdullahM
    • one year ago
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    Yes.

  26. anonymous
    • one year ago
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    thank you both of you

  27. AbdullahM
    • one year ago
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    Anytime :)

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