Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Appendix A - Section A.1 - Introduction to Functions - A.1 Problem Set - Page 487: 25


Refer to Graph I Domain is {$x$ | $x \ge 4$} Range is all real numbers of $y$ The graph is not a graph of function

Work Step by Step

Refer to Graph I for the graph of $x$ = $y^2$ + 4 (in black color). The domain is {$x$ | $x \ge 4$}. and the range is all real numbers of $y$. By means of vertical line test (in red color), the graph is not a graph of function since at any x-value > 4, the line cuts the graph at more than one y-value.
Small 1559357136
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.