Type of Sequence Arithmetic sequence. Common Difference: -11
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When a sequence is arithmetic, the difference between two consecutive terms is constant. By examining our sequence we can see that this is the case.
19 +( - 11) ⟶ 8 +( - 11) ⟶ -3 +( - 11) ⟶ -14 +( - 11) ⟶ ...
Therefore, the sequence is an arithmetic sequence with common difference - 11.