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Setler [38]
3 years ago
6

-2, 5, 12, 19,... write the recursive rule for each sequence

Mathematics
2 answers:
quester [9]3 years ago
6 0
-2+7=5
5+7=12
12+7=19 so,
7n-9
Delvig [45]3 years ago
6 0

a(1) = -2< <span>-------the 1st term is -2</span>

 

<span>recursive formula:  a(n) = a(n-1) + 7) < --</span>- adding 7  to the previous term

 

<span>a(2) = a(1) + 7 = (-2) + 7  = 5</span>

a(3) = a(2) + 7 = 5 + 7  = 12

a(4) = a(3) + 7 = 12 + 7  = 19

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