Is the sequence A_{n}=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 | 1 Answer | 0 Votes Mark favorite Subscribe Comment
Dalia< A_{n} = 4n-6, first term A_{0}=-6, common difference is A_{n+1} - A_{n }=4(n+1)-6 -(4n-6)=4n+4-6-4n+6=4 so the common difference is 4. Jim 3/19/2014 | Jim S. Comment