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: 47

Answer

This graph is a function.

Work Step by Step

This is because for every $x$ value, there is only one $y$ value. For further information, it is nearly impossible to deduce what function that is, however, it passes the straight line test for all values $x$. (The straight line test is a straight vertical line that, if passes through two points, proves that the graph tested is not a function).
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