what if the radical is in the denominator?
the domain is
so the domain is
??
range: ??
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.
Range :
The poster solved the quadratic equation.
You can, for instance, use the Quadratic Formula for this....