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Rugtugba Group Title

What is the domain of the function shown below? f(x)=-24/(x^2+8) help please

  • one year ago
  • one year ago

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  1. Rugtugba Group Title
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    @Mertsj or @phi can you guys help?

    • one year ago
  2. mivanov Group Title
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    well the domain are the x values for which the function is defined. for a fraction such as yours to be undefined the divisor must be 0 but x^2+8 > 0 for every x so the domain is R, every real number

    • one year ago
  3. Mertsj Group Title
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    Remember, the denominator cannot be 0. Since the denominator is x^2+8, and x^2 has a smallest value of 0, and 0+8 will always be positive, there are no restrictions on x and the domain is all real numbers.

    • one year ago
  4. mivanov Group Title
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    hey Mertsj, can you help me with some advanced number theory? i am trying to do something with the sigma function(sum of divisors of number)

    • one year ago
  5. Rugtugba Group Title
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    so then the domain would be all real numbers greater than 0?

    • one year ago
  6. mivanov Group Title
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    yes

    • one year ago
  7. Rugtugba Group Title
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    dag nabit it was just all real numbers :/ thanks anyways

    • one year ago
  8. Mertsj Group Title
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    Didn't I post that the domain is all real numbers?

    • one year ago
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