SOLUTION: for the sequence, describe the pattern, write the next term, and write a rule for the nth term. -3, 6, -9, 12...

Algebra ->  Sequences-and-series -> SOLUTION: for the sequence, describe the pattern, write the next term, and write a rule for the nth term. -3, 6, -9, 12...      Log On


   



Question 447184: for the sequence, describe the pattern, write the next term, and write a rule for the nth term.
-3, 6, -9, 12...

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi
sequence {-3, 6, -9, 12,...}
pattern: alternating negative and positve numbers that are... multiples of 3
next term(5th term) = (-1)^5 * 3*5 = -15
the nth term is: a%5Bn%5D+=+3n%28-1%29%5En