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mmend98

  • one year ago

I am having trouble with the following attached question.

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  1. mmend98
    • one year ago
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  2. mmend98
    • one year ago
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    @ganeshie8

  3. ganeshie8
    • one year ago
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    look at the graph, is it increasing or decreasing ?

  4. ganeshie8
    • one year ago
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    |dw:1439764151072:dw|

  5. mmend98
    • one year ago
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    the change is negative

  6. mmend98
    • one year ago
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    so it is either c or d

  7. ganeshie8
    • one year ago
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    good, how to figure out which one it is ?

  8. mmend98
    • one year ago
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    I think it is D

  9. mmend98
    • one year ago
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    i do so it would be C. that makes sense

  10. ganeshie8
    • one year ago
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    Yes it is C

  11. ganeshie8
    • one year ago
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    **from the graph we know that (2, 10) is a solution so plugin n=\(\color{red}{2}\) and see if you get 10

  12. mmend98
    • one year ago
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    thats cool how that works

  13. mmend98
    • one year ago
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  14. mmend98
    • one year ago
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    @ganeshie8

  15. ganeshie8
    • one year ago
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    |dw:1439764548358:dw|

  16. mmend98
    • one year ago
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    amplitude is 2

  17. ganeshie8
    • one year ago
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    Yes

  18. mmend98
    • one year ago
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    the midline is 1?

  19. mmend98
    • one year ago
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    so B?

  20. ganeshie8
    • one year ago
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    Yes!

  21. mmend98
    • one year ago
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    yay

  22. ganeshie8
    • one year ago
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    good job

  23. mmend98
    • one year ago
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  24. ganeshie8
    • one year ago
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    look at the table of h(x), whats the minimum number do you see in \(y\) column ? |dw:1439764875596:dw|

  25. mmend98
    • one year ago
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    5

  26. ganeshie8
    • one year ago
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    good, next look at the graph of g(x), what is its minimum y value ?

  27. mmend98
    • one year ago
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    -4

  28. ganeshie8
    • one year ago
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    Excellent! and the minimum value of f(x) is -4+2 = -2

  29. mmend98
    • one year ago
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    so the answer would be g(x)

  30. ganeshie8
    • one year ago
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    |dw:1439765054402:dw|

  31. ganeshie8
    • one year ago
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    Yes g(x) has the smallest minimum value

  32. mmend98
    • one year ago
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  33. ganeshie8
    • one year ago
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    maximum is 33-20 = ?

  34. mmend98
    • one year ago
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    13 ? really?

  35. mmend98
    • one year ago
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    thats all u have to do?

  36. ganeshie8
    • one year ago
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    Yes because the maximum value of \(\sin(anything)\) is \(1\) therefore the maximum value of \(33\sin(t)\) is \(33\), we need to subtract \(20\) because our function is \(33\sin(t)-20\)

  37. mmend98
    • one year ago
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    so the answer would be c? it makes sense thats just so simple

  38. ganeshie8
    • one year ago
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    Yes

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is replying to Can someone tell me what button the professor is hitting...

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