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11-77.

Graph the function . Use inequalities to describe its domain and range. 11-77 HW eTool (Desmos). Homework Help ✎

Domain is all of the values of that give a real answer.
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 be that would make the number under the square root sign negative?
How can you describe what numbers has to be to get a real answer?

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?

Domain:
Range:

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: CCA 11-77 HW eTool