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Is this sequence arithmetic?

Is the sequence An=4n-6 arithmetic?
yes or no?
is the answer is yes, 
the first term is?
the common difference is?
3/19/2014 | Dalia from Pleasantville, IA

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Jim S. | Physics (and math) are fun, reallyPhysics (and math) are fun, really
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Dalia<
An = 4n-6, first term A0=-6, common difference is An+1 - An =4(n+1)-6 -(4n-6)=4n+4-6-4n+6=4 so the common difference is 4.
 
Jim
3/19/2014 | Jim S.

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