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kobeni-chan

  • one year ago

Victoria has some money from her birthday and the amount is modeled by the function h(x) = 200. She read about a bank that has savings accounts that accrue interest according to the function s(x) = (1.05)x − 1. Victoria is thinking about putting her money into the savings account to gain interest. Using complete sentences, explain to Victoria how she can combine her functions to create a new function, and explain what this new function means.

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  1. kobeni-chan
    • one year ago
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    I think that the functions should combine to be 200(1.05)^(x-1) ? @ganeshie8

  2. kobeni-chan
    • one year ago
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    @Littlebird is this right?

  3. Littlebird
    • one year ago
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    I think so

  4. kobeni-chan
    • one year ago
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    That's good enough for me lol, thank you!

  5. Littlebird
    • one year ago
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    Oh wait! Ignore that.

  6. Littlebird
    • one year ago
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    Interest gained for a particular period equals to Money invested (kept) in Savings account for that period multiplied by Interest accrued on this money. Therefore, Accrued interest i(x) = h(x) * s(x) = 200 * [ (1.05)x - 1 ], where x is the number of years for which money is invested. So, new function i(x) = (210)x - 200 .

  7. Littlebird
    • one year ago
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    I'm driving myself insane. I accidentally mistyped. That 210 should be 200. I just wanted to write it out more intellignetly

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