Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 10 - Section 10.2 - Arithmetic Sequences - Exercise Set - Page 1059: 3



Work Step by Step

Formula to calculate the nth term of an arithmetic sequence is: $a_n=a_1+d(n-1)$ Here, $a_1: $ First term and $d=$ common difference $a_1=-7+4(1-1)=-7$; $a_2=-7+4(2-1)=-3$;$a_3=-7+4(3-1)=1$;$a_4=-7+4(4-1)=5$; $a_5=-7+4(5-1)=9$;$a_6=-7+4(6-1)=13$ Hence, the first six terms are: $-7,-3,1,5,9,13$
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