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marissa98

  • 3 years ago

For the life of me I can't rememeber how to solve 3(1/2)^x. If I will show you how I would do it. Then can someone please explain what part I did wrong?

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  1. marissa98
    • 3 years ago
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    So.

  2. marissa98
    • 3 years ago
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    I would obviously start off by plugging in numbers for x.

  3. marissa98
    • 3 years ago
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    such as -1 - 1 and 2

  4. marissa98
    • 3 years ago
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    -1, 0, 1, 2 *

  5. Stephchen
    • 3 years ago
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    have you been told what the value of x is?

  6. marissa98
    • 3 years ago
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    No.

  7. marissa98
    • 3 years ago
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    I was told to graph it.

  8. geoffb
    • 3 years ago
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    You can't solve it unless it's equal to something, or like stephchen said, if you knew \(x\).

  9. marissa98
    • 3 years ago
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    well. Iwas plugging in numbers for x.

  10. geoffb
    • 3 years ago
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    Oh, I see your second part now. You can graph it, sure.

  11. Stephchen
    • 3 years ago
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    if you're asked to graph it you don't have to find x

  12. Stephchen
    • 3 years ago
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    check this out: http://www.wolframalpha.com/input/?i=3%281%2F2%29%5Ex

  13. marissa98
    • 3 years ago
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    Wel. it makes it easier because then you have an x and y value. so you can easily graphmultiple points.

  14. geoffb
    • 3 years ago
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    Right. But graphing and solving are very different. If you wanted to solve the equation, as you originally said, you would need an equal sign (e.g., \(3 (\frac{1}{2})^{x} = 0\)).

  15. marissa98
    • 3 years ago
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    Good point..

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