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anonymous

  • one year ago

Suppose the amount of money in a bank account with an initial balance of $25,000 earns 1.5 percent interest per year. If the exponential function, y=A*B^X , is used to model this situation, which value would represent B in the function?

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  1. anonymous
    • one year ago
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    Sorry I have so many questions. I'm taking an exam and I really want to get a good grade. I suck at math.

  2. anonymous
    • one year ago
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    1.015 = B 1 for the original 0.15 for the interest

  3. Kash_TheSmartGuy
    • one year ago
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    No direct answers!

  4. anonymous
    • one year ago
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    Man you are a life saver. Do you think you could help me with another problem? And not give me the answer.

  5. Kash_TheSmartGuy
    • one year ago
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    Read the "Terms and Conditions" and "Code of Conduct"

  6. anonymous
    • one year ago
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    ok

  7. Kash_TheSmartGuy
    • one year ago
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    ^^ That was for @peachpi

  8. anonymous
    • one year ago
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    @peachpi

  9. anonymous
    • one year ago
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    Well can someone help please?

  10. anonymous
    • one year ago
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    @Kash_TheSmartGuy it's kind of hard not to give a direct answer to that question. There's nothing to work out

  11. Kash_TheSmartGuy
    • one year ago
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    Well, you can give them the formula or explanation of how you got the answer! Don't just give away answers!

  12. anonymous
    • one year ago
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    what are you talking about? The question is asking him to pick out a number for use in a formula. And I gave a perfectly good explanation of how to do it

  13. anonymous
    • one year ago
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    So can someone help please?

  14. anonymous
    • one year ago
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    what's the question?

  15. anonymous
    • one year ago
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    well its 2 actually

  16. anonymous
    • one year ago
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    ok

  17. anonymous
    • one year ago
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    ok so first question: Which exponential function is best represented by this table? x f(x) 0 2 1 6 2 18 3 54 answers: f(x)=3(2)^x f(x)=2(3)^x f(x)=3(1/2)^x f(x)=2(1/3)^x

  18. anonymous
    • one year ago
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    |dw:1435278909112:dw|

  19. anonymous
    • one year ago
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    got it?

  20. anonymous
    • one year ago
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    Not really

  21. anonymous
    • one year ago
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    the terms are the f(x) values. It's a sequence of numbers. 2, 6, 18, 54. 2 is the first term, 6 is the second term and so on

  22. anonymous
    • one year ago
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    WE know a=2, so you just have to calculate r to get your function

  23. anonymous
    • one year ago
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    |dw:1435279370768:dw|

  24. anonymous
    • one year ago
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    you good on this one?

  25. anonymous
    • one year ago
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    Im lost

  26. misssunshinexxoxo
    • one year ago
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    Peachpi did an adequate job answering this; he did not give a direct answer and just did 2 out of his way; please be polite on OS.

  27. anonymous
    • one year ago
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    was that directed towards me?

  28. anonymous
    • one year ago
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    Im being polite I just dont get the problem

  29. misssunshinexxoxo
    • one year ago
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    Was directed for kash

  30. misssunshinexxoxo
    • one year ago
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    Answers look correct to me:)

  31. anonymous
    • one year ago
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    y = ar^x is a general formula for an exponential function. They're asking you to find a and r for the specific points in your table. You don't really need to worry about the x-values. Only look at the f(x) part of the table. For exponential functions, a = the first number on the f(x) side. r = (2nd #)/(1st #) = (3rd #)/(2nd #) = (4th #)/(3rd #) → it's the same no matter which two consecutive numbers you use.

  32. anonymous
    • one year ago
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    where'd you get get a and r from?

  33. anonymous
    • one year ago
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    they're just constants. placeholders. you can use any two letters

  34. anonymous
    • one year ago
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    you need a letter to hold the place of the constant until you find what it is. It's kind of like the how a - quadratic function is y=ax²+bx+c - a linear function is y = mx+b. - Exponential functions are y = ar^x The constants just represent part of the function

  35. anonymous
    • one year ago
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    does that make any sense at all?

  36. anonymous
    • one year ago
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    no its fine. Thank you for all of you help. ill just wing it based off what you gave me

  37. anonymous
    • one year ago
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    Ok, thanks man

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