Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 11 - Review Exercises - Page 841: 75


See below.

Work Step by Step

$a_1=5$ $a_2=a_1+5=5+5=10$ $a_3=a_2+5=10+5=15$ $a_4=a_3+5=15+5=20$ $a_5=a_4+5=20+5=25$ The first differences: $a_2-a_1=a_3-a_2=a_4-a_3=a_5-a_4=5$ The second differences: $5-5=5-5=5-5=0$. The first differences are constant; thus it is linear.
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