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anonymous

  • one year ago

Average rate of change question

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  1. anonymous
    • one year ago
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  2. misty1212
    • one year ago
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    HI!!

  3. misty1212
    • one year ago
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    how many in 1995?

  4. anonymous
    • one year ago
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    16258

  5. anonymous
    • one year ago
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    how many in 1991?

  6. anonymous
    • one year ago
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    4493

  7. anonymous
    • one year ago
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    Help? @misty1212

  8. anonymous
    • one year ago
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    Use the definition: Let \((a,f(a))\), and \((b,f(b))\) be two points on the graph of a function \(f\). Then the average rate of change of \(f(x)\) as \(x\) changes tfrom \(a\) to \(b\) is defined by \(\dfrac{\Delta y}{\Delta x}\) \(\dfrac{f(b) - f(b)}{b - a}\), \(a \ne b\). You may know this definition in this form: \(\dfrac{y_1 - y_1}{x_2 - x_1}\) You are given two points. \((1991, 4993)\); \((1995, 16258)\) Simply plug-in you given values, and you will get your average rate of change between those two points. (Also know as slope.)

  9. anonymous
    • one year ago
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    I got 2941.25 as the average rate of change but it said it's incorrect.

  10. anonymous
    • one year ago
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    @amistre64 Is there any chance you could tell me why my answer is incorrect?

  11. amistre64
    • one year ago
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    hmm, 91 to 95 is 4 years 4993 to 16258 16258 4993 ------ 11265 is the change over 4 years is this what you got for the parts?

  12. anonymous
    • one year ago
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    Oh! I made a silly mistake. Yep, 11265 is the right answer for part a, and 2816.25 is the answer for part b. Thanks so much!

  13. amistre64
    • one year ago
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    yeah, thats what im getting :)

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