Explain why if a horizontal line intersects the graph of a function in more than one point, then the function is not one-to-one.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter3: Functions
Section3.1: Functions And Function Notation
Problem 5SE: Why does the horizontal line test tell us whether the graph of a function is one-to-one?
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Explain why if a horizontal line intersects the graph of a function in more than one point, then the function is not one-to-one.

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