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vera_ewing

  • one year ago

The Saginaw Bay tides vary between 2 feet and 8 feet. The tide is at its lowest point when time (t) is 0 and completes a full cycle in 16 hours. What is the amplitude, period, and midline of a function that would model this periodic phenomenon?

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  1. vera_ewing
    • one year ago
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    A. Amplitude = 3 feet; period = 16 hours; midline: y = 5 B. Amplitude = 3 feet; period = 8 hours; midline: y = 3 C. Amplitude = 6 feet; period = 16 hours; midline: y = 5 D. Amplitude = 6 feet; period = 8 hours; midline: y = 3

  2. ybarrap
    • one year ago
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    Does this help? |dw:1436127823465:dw|

  3. campbell_st
    • one year ago
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    the tide has a low of 2ft and high of 8 fft the amplitude is half the distance between the low and high tides

  4. vera_ewing
    • one year ago
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    Ohh so it's either A or B.

  5. campbell_st
    • one year ago
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    the midline is found by taking the low tide and adding the amplitude

  6. campbell_st
    • one year ago
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    yes it is A or B

  7. vera_ewing
    • one year ago
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    So A is the answer?

  8. campbell_st
    • one year ago
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    that would be my guess

  9. vera_ewing
    • one year ago
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    Yay! Thanks @campbell_st @ybarrap :)

  10. ybarrap
    • one year ago
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    You're welcome

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