Algebra: A Combined Approach (4th Edition)

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

Chapter 10 - Section 10.7 - Complex Numbers - Vocabulary and Readiness Check - Page 739: 5



Work Step by Step

In a complex number of the form $a+bi$, both $a$ and $b$ are real numbers. Since $b=0$ makes the imaginary part of the complex number zero, all that remains is the real part $a$. As highlighted before, $a$ is a real number.
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