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anonymous

  • one year ago

Using the graph below, calculate the average rate of change for f(x) from x = 0 to x = 2. x = −4 x = −2 x = 2 x = 4

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

  3. phi
    • one year ago
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    find the change in y divided by the change in x between the two points

  4. anonymous
    • one year ago
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    How?

  5. TrojanPoem
    • one year ago
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    f(2) - f(0) / 2- 0

  6. TrojanPoem
    • one year ago
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    f(0) = -2 , f(2) = 5

  7. anonymous
    • one year ago
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    Huh?

  8. phi
    • one year ago
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    Put your finger on x=0 (on the x-axis, where x is 0) move your finger down until you reach the "curve" (called f(x)) how many steps down did you move ?

  9. anonymous
    • one year ago
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    -2 steps

  10. anonymous
    • one year ago
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    so B?

  11. phi
    • one year ago
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    that means (0, -2) is the first point now do the same for x=2 (except you move up to find f(x) )

  12. anonymous
    • one year ago
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    How do I do that?

  13. TrojanPoem
    • one year ago
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    isn't it (2,5) @phi ?

  14. phi
    • one year ago
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    put your finger on the x-axis at x=2 move your finger up until you reach the curve. How many steps?

  15. anonymous
    • one year ago
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    2 down and 2 to the left

  16. TrojanPoem
    • one year ago
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    |dw:1435687694968:dw|

  17. anonymous
    • one year ago
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    So what is my answer?

  18. phi
    • one year ago
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    The answer is being able to do it. put your finger on x=2, and count up how many steps?

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  19. anonymous
    • one year ago
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    6

  20. phi
    • one year ago
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    so (2,6) is the second point now when you start at (0,-2) the y value is -2 at the second point, the y value is 6 any idea how much the y value changed ?

  21. anonymous
    • one year ago
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    No sry im not good at this

  22. anonymous
    • one year ago
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    -2 I think

  23. phi
    • one year ago
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    you can put your finger on y=-2 and count how many steps to get to y=6 or you can subtract 6 - -2 you should ge the same answer

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