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What is the recursive rule for the sequence?
−2.7, −8.3, −13.9, −19.5, −25.1, ...
 
A) an = an + 1 − 5.6, where a1 = −2.7

B) an = an − 1  + 5.6, where a1 = −2.7

C) an = an − 1 − 5.6, where a1 = −2.7

D) an = an + 1 + 5.6, where a1 = −2.7

 

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Thanks to anyone who helps!

Jaleco  Mar 10, 2018
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2+0 Answers

 #1
avatar+86528 
+2

C) an = an − 1 − 5.6, where a1 = −2.7

 

Note that we are subtracting  5.6  from a previous term to get the successive term

 

So

Second term  =  -2.7 - 5.6  =  -8.3

Third term  =  -8.3  - 5.6  = -13.9      ....etc.    

 

 

 

cool cool cool

CPhill  Mar 10, 2018
 #2
avatar+95 
+1

Thank you!!

Jaleco  Mar 11, 2018

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