SOLUTION: Determine the common difference, the fifth term, the nth term, and the 100th term of the arithmetic sequence. −t, −t + 4, −t + 8, −t + 12, I have solved

Algebra ->  Sequences-and-series -> SOLUTION: Determine the common difference, the fifth term, the nth term, and the 100th term of the arithmetic sequence. −t, −t + 4, −t + 8, −t + 12, I have solved      Log On


   

Question 1104307: Determine the common difference, the fifth term, the nth term, and the 100th term of the arithmetic sequence.
−t, −t + 4, −t + 8, −t + 12,
I have solved the common difference (4), the fifth term, -t+16, but I can't seem to figure out how to solve the nth term. I know once I have that, Ill be able to solve the 100th term, but I can't figure out that part
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Common difference is positive 4, simply by inspection.

The general term is %28-t%29%2B4%28n-1%29, as expected for first term, -t and common difference between terms, %2B4, for an arithmetic progression.