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What is the domain of

y = sqrt(5 - x)

  • Math -

    and the range please!

  • Math -

    √u is only defined where u>=0.

    so, √(5-x) is only defined where 5-x >= 0.

    Thus, the domain is all reals x <= 5.

  • Math -

    the range is all reals >= 0.

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