College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter R - Section R.2 - Algebra Essentials - R.2 Assess Your Understanding: 35

Answer

$d(C, D) = 1$

Work Step by Step

$d(C, D)$ represents the distance between the points C and D on a number line. If the coordinates of C and D are $c$ and $d$, respectively, then: $d(C, D) = |c-d|$ Based on the given number line, the coordinates of C and D are 0 and 1, respectively. Use the formula above to obtain: $d(C, D) = |0-1| = |-1| = 1$ Thus, $d(C, D) = 1$
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