Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 8 - Section 8.1 - Finding Roots - Exercise Set: 78

Answer

$x\geq3$

Work Step by Step

For $\sqrt{x-3}$ to be a real number, $x-3$ must be non-negative. $x-3\geq0$ Add 3 to both sides of the inequality and simplify. $x-3+3\geq0+3$ $x\geq3$
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