Question 934800: write the explicit form for the following sequences:
1. 9, 16, 23,30.....
2. 1, 3, 6, 8, 11....
3. 68, 57, 46, 35....
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! # 1
We're adding 7 each time. So d = 7
The first term is 9, so 
This is an arithmetic sequence
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# 2
I'm not sure what the rule is here. So repost this question separately so others may see it and help you out.
The rule may be: add 2, add 3, add 2, add 3, ...
but that rule may be wrong.
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# 3
We subtract 11 each time, so d = -11
First term: 
This is an arithmetic sequence
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