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JayDelV

  • one year ago

Which sequence is modeled by the graph below?

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  1. JayDelV
    • one year ago
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  2. JayDelV
    • one year ago
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    \[A. a_{n}=\frac{ 1 }{ 3 }(27)^{n-1}\] B. \[a_{n}=27(\frac{ 1 }{ 3})^{n-1}\] C. \[a_{n}=(-3)^{n-1}\]

  3. zzr0ck3r
    • one year ago
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    these are just functions, so plug in the given values of \(n\) and see which one corresponds to the graph

  4. zzr0ck3r
    • one year ago
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    where does 1 map to?

  5. JayDelV
    • one year ago
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    D. \[a_{n}=3(1/2)^{n-1}\]

  6. JayDelV
    • one year ago
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    one sec its not opening

  7. phi
    • one year ago
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    It may not be obvious, but I would match up "x" with "n" look at your graph. when x=2, you want a formula that gives 9 I would test n=2 in each formula and see if I get 9

  8. zzr0ck3r
    • one year ago
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    that would imply (1,3) is on the graph

  9. zzr0ck3r
    • one year ago
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    You need only to look at the output of \(1\).

  10. phi
    • one year ago
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    zz, x=1 is not plotted.

  11. JayDelV
    • one year ago
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    I am not understand at all, I skimmed over this chapter and am solely regretting it

  12. JayDelV
    • one year ago
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    so bare with me :(

  13. JayDelV
    • one year ago
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    understanding*

  14. zzr0ck3r
    • one year ago
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    you are given three sequences evaluate each one at 1 and you will get (1, 1/3),(1,27) and (1,1) only one of these is could possibly be on the graph

  15. zzr0ck3r
    • one year ago
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    @phi exactly

  16. zzr0ck3r
    • one year ago
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    its plotted, its not in the graph window.

  17. JayDelV
    • one year ago
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    Oh so which ever one of those that can be plotted?

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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