Work Step by Step
RECALL: The equation of a horizontal line is of the form $y=k$ where $k$ is any real number. Thus, the graph of $y=3$ is a horizontal line.
You can help us out by revising, improving and updating this answer.Update this answer
After 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.