Calculus Concepts: An Informal Approach to the Mathematics of Change 5th Edition

Published by Brooks Cole
ISBN 10: 1-43904-957-2
ISBN 13: 978-1-43904-957-0

Chapter 1 - Ingredients of Change: Functions and Limits - 1.1 Activities: 43

Answer

This graph is not a function.

Work Step by Step

This is because there are numerous $x$ values that have two $y$ values each. A function can only have one $y$ value for every $x$ value. For more information, this figure is an ellipse.
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