whats the domain?

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1 Answer

  • 1 month ago

    The domain of a function is the list of valid inputs that will create a valid output.

    In this case, the denominator cannot be zero so x cannot be -4, 0, or 4.

    The domain then is all real numbers except for these three points.

    In interval notation, you would write that as:

    (-∞, -4) U (-4, 0) U (0, 4), U (4, ∞)

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