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anonymous

  • 5 years ago

Describe the end behavior of the graph of the polynomial function: f(x) = 2x^(5) - 7x^(2) - 4x

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  1. Mertsj
    • 5 years ago
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    if x is a "big" negative number then x^5 is a "huge" negative number so the graph would be in the 3rd quadrant. Similarly if x is far to the right x^5 is a huge positive number so the graph is in the first quadrant. So we say that the graph enters in the third and leaves in the first.

  2. Mertsj
    • 5 years ago
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    |dw:1326768319574:dw|

  3. anonymous
    • 5 years ago
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    Thank you! What would those points be?

  4. Mertsj
    • 5 years ago
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    I don't know without calculating them and it doesn't matter. The question asks for the end behavior and it is as shown.

  5. anonymous
    • 5 years ago
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    Thank you very much!

  6. anonymous
    • 5 years ago
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    Can I ask one more question? It is the same kind of question.

  7. anonymous
    • 5 years ago
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    x=0 then y=0 the graph is wrong

  8. anonymous
    • 5 years ago
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    what should it look like

  9. anonymous
    • 5 years ago
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    use wolfram http://www.wolframalpha.com/input/?i=plot+2x^5+-+7x^2-4x

  10. anonymous
    • 5 years ago
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    http://www.wolframalpha.com/input/?i=2x^5+-+7x^2-4x+%3D+0 it has 3 real and 2 complex roots

  11. anonymous
    • 5 years ago
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    thank you

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