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!

Math  Steve, Thursday, November 15, 2012 at 1:48pm
√u is only defined where u>=0.
so, √(5x) is only defined where 5x >= 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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