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nirvana33 [79]
3 years ago
12

Identify the explicit function for the sequence in the table

Mathematics
1 answer:
nignag [31]3 years ago
6 0
The common difference is 19-7 = 31-19 = 12, so this is an arithmetic sequence. The initial term (when n=1) is 7.

The explicit formula for the terms of an arithmetic sequence is
  an = a1 + d(n-1)
where "a1" is the first term and "d" is the common difference. The formula that matches a1=7 and d=12 is
  B. a(n) = 7+(n-1)·12
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