We can recognize the sequence is an arithmetic progression by noticing that the common difference between each term is 6. [tex]f(n) = a+(n-1)d[/tex] where f(n) is the sequence n is the term number d is the common difference and a is the starting term
We are well aware that our starting term, and hence a, is 2 and our difference, and hence d, is 6. So our polynomial function is [tex]f(n) = 2+6(n-1)[/tex]
