Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 1 - Speaking Mathematically - Exercise Set 1.3 - Page 22: 15


Only (d) depicts a function from $X$ to $Y$.

Work Step by Step

For an arrow diagram to depict a function, every value in the domain must have exactly one arrow coming from it and mapping it onto a value in the codomain.
Update this answer!

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.