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Pearson Algebra 2 Common Core, 2011 View details

6. Analyzing Data

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Exercise 36 Page 718

What makes a sequence arithmetic?

Arithmetic Sequence? Yes.
Common Difference: -9

Practice makes perfect

When a sequence is arithmetic, the difference between two consecutive terms is constant. Examining our sequence, we can see that this is the case. 16 - 9 → 7 - 9 → - 2 Therefore, the sequence is arithmetic and the common difference is - 9.