Answer
not one-to-one
Work Step by Step
Notice that domain elements 20 hours and 25 hours are both paired with the same element of the range.
This means that the given function is NOT one-to-one.
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.