The rule an=−2⋅3 ^{n-1} is the explicit rule for a geometric sequence.

Which equation represents the recursive rule for this sequence?

a_{n}=3⋅a_{n+1} , a1=−2

a_{n}=−2⋅a_{n−1} , a1=−2

a_{n}=−2⋅3⋅ a_{n−1} , a_{1}=−2

a_{n}=3⋅a_{n-1} , a_{1}=−2

jjennylove Jan 8, 2019