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

Subtract from both sides of the inequality.

Divide each term by and simplify.

Divide each term in by . When multiplying or dividing both sides of an inequality by a negative value, flip the direction of the inequality sign.

Cancel the common factor of .

Cancel the common factor.

Divide by .

Divide by .

The solution consists of all of the true intervals.

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

Interval Notation:

Set-Builder Notation:

Find the Domain square root of -8x+16