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I need help with this ASAP.

 May 17, 2018
 #1
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+1

Note that the first  few terms are

 

7,  -28,  112, - 448  ......

 

So....the first term, a1,   is   7

 

And the an term is  given  by   -4 (an-1)

 

So....the rule is

 

an  = -4 (a n-1),   a1  = 7

 

 

 

cool cool cool

 May 17, 2018

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