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avatar+484 

What is the explicit rule for the sequence?

12,6,0,−6, …

 Dec 14, 2018
edited by awsometrunt14  Dec 14, 2018
 #1
avatar+100519 
+2

Explicit rule :

 

an  = a1 + d(n - 1)

Where an is the nth term ......a1 is the first term   and d is the common difference  [ here = - 6]

 

So  we  have

 

an  =  12  +  - 6(n - 1)   =   12  - 6(n - 1)

 

 

cool cool cool

 Dec 14, 2018
 #2
avatar+484 
+1

For my multiple choice it has these as the choices.

an=18+6n

an=6−6n

an=18−12n

an=18−6n

awsometrunt14  Dec 14, 2018
 #3
avatar+100519 
+2

Oh...OK....!!!!

 

Let's simplify my answer

 

12 - 6(n - 1)  =

 

12 - 6n + 6  =

 

18 - 6n

 

 

cool cool cool

CPhill  Dec 14, 2018

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