Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.1 - Algebraic Expressions, Mathematical Models, and Real Numbers - Exercise Set: 42

Answer

$1$

Work Step by Step

$1$ is an integer because it is one of the counting numbers, a rational number because it can be expressed as the quotient of two integers $(\frac{1}{1})$, and a real number because it is not the square root of a negative.
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