Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

Chapter 1 - Section 1.1 - Four Ways to Represent a Function - 1.1 Exercises: 1

Answer

The functions $f(x) = x+ \sqrt (2-x)$ and $g(u) = u + \sqrt(2-u)$ give exactly the same output values for every input value, so f and g are equal.

Work Step by Step

These two functions have the same domain, which is from $(-\infty, 2]$. And for the same value input, say x = 2 and u = 2, these two functions give the same result.
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