McGraw Hill Glencoe Algebra 2, 2012
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McGraw Hill Glencoe Algebra 2, 2012 View details
1. Sequences as Functions
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Exercise 1 Page 663

What makes a sequence arithmetic?

Arithmetic Sequence? Yes.
Common Difference: - 10

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.

Therefore, the sequence is arithmetic and the common difference is - 10.