Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
7. Arithmetic Sequences
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Exercise 57 Page 280

A sequence is arithmetic if the difference between two consecutive terms is constant.

Is the Sequence Arithmetic? No.
Explanation: See solution.

Practice makes perfect
When a sequence is arithmetic, the difference between two consecutive terms is constant. Let's see if this is the case for the given sequence.
As we can see, the difference between consecutive terms is not constant. Therefore, the sequence is not arithmetic.