College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 3 - Section 3.1 - Functions - 3.1 Assess Your Understanding: 62

Answer

The domain of f is {$x|x\gt9$}.

Work Step by Step

We can only take the square root of a positive number, so it follows that: $x-9\gt0$ $x\gt9$ The domain of f is {$x|x\gt9$}.
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