SOLUTION: Find d for the sequence for which a1=100 and a12=34

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Question 1034992: Find d for the sequence for which a1=100 and a12=34
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
We use
a%5Bn%5D+=+a%5B1%5D+%2B+%28n-1%29d
Here we are looking for d...so we plug in and get
34+=+100+%2B+11d
-66+=+11d
d = -6