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 - Page 27: 38


$d(C, E) = 3$

Work Step by Step

$d(C, E)$ represents the distance between the points C and E on a number line. If the coordinates of C and E are $c$ and $e$, respectively, then: $d(C, E) = |c-e|$ Based on the given number line, the coordinates of C and E are $0$ and $3$, respectively. Use the formula above to obtain: $d(C, E) = |0-3| = |-3| =3$ Thus, $d(C, E) = 3$
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