Set the radicand in greater than or equal to to find where the expression is defined.

The domain is all values of that make the expression defined.

Interval Notation:

Set-Builder Notation:

The range of a negative even indexed radical starts at its starting point and extends to negative infinity.

The range is the set of all valid values.

Interval Notation:

Set-Builder Notation:

Determine the domain and range.

Domain:

Range:

Find the Domain and Range y=2- square root of x