what if the radical is in the denominator?
the domain is
so the domain is
is this correct?
First check where
Solution is and
This means as domain is so the equation is always positive.
This means if ,y=
As always increases when increases, So the value of this function decreases.
Hence max. value this function can have is and the graph of this function tends to zero, when x increases but can never be equal to zero.