Posted by **Steph** on Thursday, November 15, 2012 at 12:27pm.

What is the domain of

y = sqrt(5 - x)

- Math -
**Steph**, Thursday, November 15, 2012 at 12:28pm
and the range please!

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**Steve**, Thursday, November 15, 2012 at 1:48pm
√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 -
**Steve**, Thursday, November 15, 2012 at 1:49pm
the range is all reals >= 0.

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