# Graph y equals minus square root of x

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:

Interval Notation:

Set-Builder Notation:

Replace the variable with in the expression.

Clarify the result.

Delete parentheses.

Should be rewritten as .

Withdraw terms from under the radical, assuming positive real numbers.

First, multiply by .

The result is .

The radical expression end point is .

Substitute the value into . In such a case, the point is .

Replace the variable with in the expression.

Clarify the result.

Delete parentheses.

Any root of is .

Multiply by .

The result is .

Substitute the value into . In this case, the point is .

Replace the variable with in the expression.

Simplify the result.

Delete parentheses.

The result is .

The square root can be graphed using the points around the vertex

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