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Gemiola [76]
3 years ago
14

A recursive rule for the arithmetic sequence is a1=-3;an=an-1+7

Mathematics
1 answer:
Shkiper50 [21]3 years ago
8 0
The explicit rule for any arithmetic sequence is:

a(n)=a+d(n-1), a=initial term, d=common difference, n=term number

In this case a=-3 and d=7 so:

a(n)=-3+7(n-1)

a(n)=-3+7n-7

a(n)=7n-10
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