Question 192378: decide whether the sequence is arithmetic. explain why or why not.
14,11,8,5,2,...
Found 2 solutions by Edwin McCravy, solver91311:
Answer by Edwin McCravy(20064)   (Show Source):
You can put this solution on YOUR website! decide whether the sequence is arithmetic. explain why or why not.
14,11,8,5,2,...
To find out,
1. subtract 2nd term - 1st term. we get 11-14 or -3.
2. subtract 3rd term - 2nd term. we get 8-11 or -3
3. subtract 4th term - 3rd term. we get 5-8 or -3
4. subtract 5th term - 4th term. we get 2-5 or -3
Since we got the same thing, -3, every time we subtracted
a term from the next term, we know it is an arithmetic
sequence with a common difference of -3.
Edwin
Answer by solver91311(24713)  (Show Source):
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