Domain is all of the values of
Range is all real values that are possible answers.
You cannot take the square root of a negative number and get a real answer.
What numbers could
How can you describe what numbers
Taking a square root gives a positive number.
There is a negative sign in front of the square root.
What does this tell you about the possible answers?
Use the eTool below to graph the function and describe the domain and range.
Click on the link at right for the full eTool version: 11-77 HW eTool