Answer
The sequence is not arithmetic.
Work Step by Step
This sequence is not arithmetic because there is no common difference between the terms.
A(2) - A(1) = 10
A(3) - A(2) = -10
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 4 - An Introduction to Functions - 4-7 Arithmetic Sequences - Practice and Problem-Solving Exercises - Page 280: 57
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