College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 3 - Polynomial and Rational Functions - Exercise Set 3.4 - Page 390: 98


f is not defined for x=1 and x=2

Work Step by Step

1. The dashed line x=1 indicates that f(1) does not exist. No point on the graph has 1 as its x-coordinate. 2. The empty circle at (2,1) indicates that f(2)$\neq 1$, but there is no solid dot to indicate what f(2) should be. f is not defined for x=1 and x=2
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