MythsAndDragons
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What is the recursive rule for this geometric sequence? 1, 3, 9, 27, ... Enter your answers in the boxes.

an= (blank) *an-1
a1= (blank)

Someone please explain, I don't understand this one.

Answer :

nickima
the rule for a geometric sequence is:
  the number times x = the  next number in the sequence
for this one the next number will be 27 times 3

Explanation:
1 times 3 = 3
3 times 3 = 9
9 times 3 = 27
27 times 3 = ?
humbertogutierrez75

Is theAnswer: an=1•3n-1


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