Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 1 - Test: 22

Answer

a. The natural numbers are 1 and 7 b. The whole numbers are 0, 1, and 7 c. The integers are -5, -1, 0, 1, and 7 d. The rational numbers are -5, -1, $\frac{1}{4}$, 0, 1, 7, 11.6 e. The irrational numbers are $\sqrt 7$ and 3$\pi$ f. The real numbers are -5, -1, $\frac{1}{4}$, 0, 1, 7, 11.6, $\sqrt 7$, and 3$\pi$

Work Step by Step

Real numbers are all numbers that correspond to points on a number line, so all numbers in the set are real. Rational numbers can be represented as a quotient of integers, and irrational numbers are nonrational numbers. Integers are positive and negative numbers on a number line, whole numbers include {0, 1, 2, ...}, and natural numbers include {1, 2, 3, ...}.
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