Answer
$(- \infty, 5]$
Work Step by Step
Here, $f(x)=\sqrt{5-x}$
Put the equation inside the square root gerater than and equal to zero.
we have, $5-x \geq 0$
or $x \leq 5$
Thus, Domain will be: $(- \infty, 5]$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 7 - Section 7.1 - Radical Expressions and Functions - Exercise Set - Page 514: 127
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