This is a one-to-one function.
Work Step by Step
Place a horizontal line on any point of the graph. In order for the function to be a one-to-one function, the horizontal line must intersect the graph only once.
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.