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anonymous

  • one year ago

Suppose that the function f(x) = 3x + 11 represents the cost to rent x video games a month from an internet gaming club. George now has $6. How many more dollars does George need to rent 14 video games next month?

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  1. anonymous
    • one year ago
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    Set x=14

  2. anonymous
    • one year ago
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    f(14) = 42+11

  3. anonymous
    • one year ago
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    okay

  4. anonymous
    • one year ago
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    f(14) = 53, so he needs $53 to rent 14 video games but he has $6 so he needs $53-$6 = ??? more.

  5. anonymous
    • one year ago
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    47

  6. anonymous
    • one year ago
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    Yes

  7. anonymous
    • one year ago
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    The sequence below shows the number of flowers a plant enthusiast plants each year. 6, 30, 150, 750, ... Which formula could be used to determine the number of flowers the nursery will plant next year, NEXT, if the number of flowers planted this year, NOW, is known?

  8. anonymous
    • one year ago
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    This is a geometric progression problem

  9. anonymous
    • one year ago
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    okay, I got F(n)=1n-5

  10. anonymous
    • one year ago
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    \[a _{5} = 6(5)^{5-1}\]

  11. anonymous
    • one year ago
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    The geometric progression formula is this \[T _{n} = ar ^{n-1}\]

  12. anonymous
    • one year ago
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    okay

  13. anonymous
    • one year ago
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    you can see the sequence it multiples by 5 each time

  14. anonymous
    • one year ago
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    would it be n+5

  15. anonymous
    • one year ago
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    no because this is a geometric progression

  16. anonymous
    • one year ago
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    it starts at 6 and it multiplies by 5 each step

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