Write a formula for the nth term of the arithmetic sequence 1, -3, -7, - 11, - 15... The formula for the nth term of the sequence is an

asked Apr 12, 2021 102k views

3 votes

Write a formula for the nth term of the arithmetic sequence

1, -3, -7, - 11, - 15...
The formula for the nth term of the sequence is an

by GvM

4.2k points

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2 votes

Answer:

Explanation:

$a_(1)=1\\d=-3-1=-4\\a_(n)=a_(1)+(n-1)d\\a_(n)=1+(n-1)(-4)\\a_(n)=1-4n+4\\a_(n)=5-4n$

Kyoung answered Apr 18, 2021

3.8k points

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