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anonymous97

  • one year ago

Use the graph below to answer the question that follows: cosine graph with points at 0, 3 and pi, negative 5 and 2 pi, 3 What are the amplitude, period, and midline of the function? Amplitude: 4; period: 2π; midline: y = −1 Amplitude: 8; period: 2π; midline: y = 1 Amplitude: 8; period: π; midline: y = −1 Amplitude: 4; period: π; midline: y = 1

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  1. anonymous97
    • one year ago
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  2. anonymous
    • one year ago
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    you have a graph, so all the questions get answered from your eyeballs, not from an equation or some kind of algebra

  3. anonymous
    • one year ago
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    the period is the length over which the function makes one complete cycle. take a look and see where it is at its peak, and the next peak. the length of of that interval (on the x axis) is the period

  4. anonymous
    • one year ago
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    the amplitude is half the distance from the lowest most point on the graph to the upper most point

  5. anonymous97
    • one year ago
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    thank you so much

  6. anonymous
    • one year ago
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    yw if you would like me to check your answer let me know

  7. anonymous97
    • one year ago
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    amplitude is 4 correct?

  8. anonymous
    • one year ago
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    yes from -5 to 3 is 8 units, half of that is 4

  9. anonymous97
    • one year ago
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    so for period its the highest arc to the lowest arc

  10. anonymous97
    • one year ago
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    how do i find midline?

  11. anonymous
    • one year ago
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    it is half way between -5 and 3

  12. anonymous
    • one year ago
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    as the name suggests it is the horizontal line that is "midway" between the max and the min

  13. anonymous
    • one year ago
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    and no, the period is not from the highest to lowest

  14. anonymous97
    • one year ago
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    okay so the answer is A?

  15. anonymous97
    • one year ago
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    cause the midline is -1

  16. anonymous
    • one year ago
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    yes, a rare A

  17. anonymous97
    • one year ago
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    thank you i appreciate it

  18. anonymous
    • one year ago
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    yw

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