Question

Tell whether the sequence 12, 4, -4, -12, -20, ... is arithmetic

Answer 1

Good evening

Answer:

Yes it’s an arithmetic sequence

Explanation:

→ 4-12=-8

→ -4-4=-8

→ -12-(-4)=-8

→ -20-(-12)=-8

As you can see the difference between any two consecutive terms is the same which prove that it’s an arithmetic sequence .

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:)

Answer 2

yes, it is arithmetic as the common difference is -8