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

Subtract from both sides of the inequality.

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 – square root of x+2