2. Write an expression to represent f (20)

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2. Write an expression to represent f (20)

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Khoii Minh 5 years 2021-07-24T09:10:51+00:00 1 Answers 249 views 0

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  1. thongdat2
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    2021-07-24T09:12:10+00:00
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    Answer:

    I just learned this topic and have the same question, so I’m not sure if this right. However, I see a fellow student struggling and have to at least put in what I know. My equation was f(n) = 64(1/2)^n-1, then the question was write an expression to represent f(20).

    Step-by-step explanation:

    So, my answer was f(20) = 64(1/2)^19

    f(20) is the number you plug into n. And because the exponent is n-1, I knew to subtract 1 from 20 to get 19.

    Then I just wrote the equation out like the original expect with the numbers pluged in: f(20) = 64(1/2)^19

    I hope this helps!

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