Answer
Hence, the common difference is $-1$
The error is in the last step.
Work Step by Step
The given series is
$2,1,0,-1,...$
Common difference
$1-2=-1$
$0-1=-1$
$-1-0=-1$
Hence, the common difference is $-1$
The error is in the last step.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 4 - Writing Linear Functions - 4.6 - Arithmetic Sequences - Exercises - Page 215: 39
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