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anonymous

  • one year ago

Find the first six terms of the sequence. a1 = -8, an = 5 • an-1 -8, -40, -200, -1000, -5000, -25,000 -8, -40, -35, -30, -25, -20 0, 5, -40, -35, -30, -25 -40, -200, -1000, -5000, -25,000, -125,000

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  1. freckles
    • one year ago
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    -8 is the first term ...and your second term can be found by multiplying 5 to your previous term

  2. freckles
    • one year ago
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    \[a_n=5 \cdot a_{n-1} \text{ this says \to find next term just multiply previous term by 5}\]

  3. anonymous
    • one year ago
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    so the second term would be -40? because 5 x -8 = -40?

  4. freckles
    • one year ago
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    \[\text{ replace } n \text{ with 2} \\ a_2=5 \cdot a_{2-1} \\ a_2=5 \cdot a_1 \] see you are just multiplying previous term by 5 to find the term

  5. freckles
    • one year ago
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    yep

  6. anonymous
    • one year ago
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    ok thank you!

  7. freckles
    • one year ago
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    np

  8. freckles
    • one year ago
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    so what will you do for third term :)

  9. freckles
    • one year ago
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    5 times previous right?

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