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What is recursive rule for the sequence?

SamJones  May 1, 2018
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Hi SJ

 

We can plug in the values to find the recursive rule.

 

We plug in n = 1.

 

\(a_1=9(-5)^{1-1}=9\)

 

We imediately eliminate b and c.

 

We plug in n = 2

 

\(a_2=9(-5)^{2-1}=-45\)

 

We can see that only d works.

 

That is your final answer,

 

I hope this helped,

 

Gavin

GYanggg  May 1, 2018

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