Pearson Algebra 1 Common Core, 2011
PA
Pearson Algebra 1 Common Core, 2011 View details
7. Arithmetic Sequences
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Exercise 27 Page 279

What makes a sequence an arithmetic sequence?

Type of Sequence Arithmetic sequence.
Common Difference: -0.5

Practice makes perfect

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. 15 +( - 0.5) ⟶ 14.5 +( - 0.5) ⟶ 14 +( - 0.5) ⟶ 13.5 +( - 0.5) ⟶ 13 Therefore, the sequence is an arithmetic sequence with common difference - 0.5.