Answer
Domain: (-infinity, infinity)
Range: (-infinity, 6]
Work Step by Step
The open circle at (-1,2) shows that the other part of the piecewise function takes over at $x=-1$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.