Trigonometry 7th Edition

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

Chapter 4 - Section 4.1 - Basic Graphs - 4.1 Problem Set - Page 191: 4

Answer

x=c is called a root of the function x=c will appear as an x-intercept for the graph of f.

Work Step by Step

Usage of factor theorem Since f(c)=0, x-c is a root of the function f. As a root of the function, the value of c forms an intercept with the x-axis.
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