SOLUTION: I need help on this question please!! {6, 1, -4, -9, ...} Write a formula for the general term (the nth term) of the arithmetic sequence. Do not use a resursive formula

Algebra ->  Square-cubic-other-roots -> SOLUTION: I need help on this question please!! {6, 1, -4, -9, ...} Write a formula for the general term (the nth term) of the arithmetic sequence. Do not use a resursive formula      Log On


   



Question 765347: I need help on this question please!!

{6, 1, -4, -9, ...}
Write a formula for the general term (the nth term) of the arithmetic sequence. Do not use a resursive formula

Answer by ramkikk66(644) About Me  (Show Source):
You can put this solution on YOUR website!
This is an arithmetic progression with first term as 6, and difference as -5.
(i.e. each term is the previous term -5)
In any arithmetic progression, if 'a' is the first term, and the difference is d,
Second term = a + d
3rd term = a + d + d = a + 2d
4th term = a + 3d
In general, nth term = a + (n-1)*d
So in the above series, nth term will be 6+-+5%2A%28n+-+1%29+=+11+-+5%2An
Hope you got it :)