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anonymous

  • one year ago

Find the domain and range. Use inequality and interval notation.

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  1. anonymous
    • one year ago
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    |dw:1441672271947:dw|

  2. anonymous
    • one year ago
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    All you need to do is list the values in {} brackets. Y is domain, X is range. So, for example, Domain {1,2,3,4,5} Range {6,7,8,9,10} That's for interval notation, though. I cannot remember how to do inequalities, sorry!

  3. anonymous
    • one year ago
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    D: {0,∞ } R: {0,-∞ }

  4. anonymous
    • one year ago
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    Isn't inequality like, Example) -∞ <y<0

  5. anonymous
    • one year ago
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    Yes, I believe so =)

  6. anonymous
    • one year ago
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    How would i then find inequality for the graph?

  7. mathmate
    • one year ago
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    The diagram does not provide all the information necessary. It is preferable to post an image of the original question. In the mean time, 1. Does the function start from x=0, or x>0? 2. Is the function real or is it an integer function?

  8. anonymous
    • one year ago
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    1. x=0 2. real function

  9. mathmate
    • one year ago
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    The interval notation provided by @CollateralDamage is close, but not exact. We need to use (, [, ), or ] for the limits. [ includes the value, and ( excludes the value. Since it starts from zero to infinity, we write domain = [0,\(\infty\)) while excluding infinity (not a defined value). Range would be similar, [0,-\(\infty\)). You can try the inequality notation, using < for less than, \(\le\) for less than or equal to. something like 5\(\le\)x<100, but substitute the correct values used in the interval notation.

  10. anonymous
    • one year ago
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    D: 0<x<∞ R: -∞<y<0

  11. mathmate
    • one year ago
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    You're excluding the point (0,0) in both cases, otherwise it looks ok. By the way, I need to make the correction for range \((-\infty, 0]\).

  12. anonymous
    • one year ago
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    Thanks for the help @mathmate :D

  13. mathmate
    • one year ago
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    You're welcome. :)

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