Work Step by Step
The Vertical Line Test can be used to determine whether or not a relation is a function. If a vertical line can touch a graph in at least two places, then the relation is NOT a function.
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.