Math
posted by
Steph on
.
What is the domain of
y = sqrt(5  x)

Math 
Steph,
and the range please!

Math 
Steve,
√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,
the range is all reals >= 0.