Determine whether the sequences are arithmetic or geometric

Dexter Odom

Dexter Odom

Answered question

2022-03-25

Determine whether the sequences are arithmetic or geometric and write the n-th term formula
6,24,96,
7,13,19,

Answer & Explanation

Harry Gibson

Harry Gibson

Beginner2022-03-26Added 13 answers

1) Given 6,24,96,
246=9624=4
Thus, it's a geometric sequence
And r=4
a=6
an=arn1=6(4n1)
2) Given 7,13,19,
137=1913=6
Thus, it's an arithmetic sequence
And a=7, d=6
an=a+(n1)d=7+(n1)6
=1+6n

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