SOLUTION: A certain arithmetic sequence has this explicit formula for the nth term: an = 11 + (n - 1)(4) The same sequence has this recursive formula: an = an-1 + What number b

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Question 1036079: A certain arithmetic sequence has this explicit formula for the nth term:
an = 11 + (n - 1)(4)
The same sequence has this recursive formula:
an = an-1 +
What number belongs in the blank space in the recursive formula?

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
To do this, you just compare a%5B1%5D with a%5B2%5D etc...here
a%5B1%5D+=+11 whereas a%5B2%5D+=+15
Thus
a%5Bn%5D+=+a%5Bn-1%5D+%2B+4