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HELP!!!!! Algebra II Help needed Find a formula for the nth term of the arithmetic sequence. First Term -2 Common Difference 8 Gotten this far: an=8n+? Thank you!!!

HELP!!!!! Algebra II Help needed Find a formula for the nth term of the arithmetic sequence. First Term -2 Common Difference 8 Gotten this far: an=8n+? Thank you!!!
asked 135k views
22 votes
HELP!!!!! Algebra II Help needed

Find a formula for the nth term of the arithmetic sequence.
First Term -2
Common Difference 8

Gotten this far:
an=8n+?

Thank you!!!

asked
User Panayiotis
by
8.5k points

1 Answer

7 votes

Answer:


a_(n) = 8n - 10

Explanation:


a_(n) = a_(1) + (n - 1)d is the formula you want to use


a_(n) = -2 + (n - 1)8

= -2 + 8n - 8

= 8n - 10

answered
User MarcoK
by
8.8k points
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