Which of the following sequences is not arithmetic? a.1, 2, 3, 4, ... b.2, 4, 6, 8, ... c.0, -2, -4, -6, ... d.1, 4, 9, 16, ...

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asked Jul 18, 2019 121k views

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TanguyB · Answer 1 · 2019-07-24T06:42:05+0000

Answer: Choice D

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A is arithmetic since we add 1 each time. The common difference is d = 1
B is arithmetic because the common difference is d = 2
C is arithmetic because d = -2 is the common difference
D is not arithmetic. The jump from 1 to 4 is +3 while the jump from 4 to 9 is +5

Which of the following sequences is not arithmetic? a.1, 2, 3, 4, ... b.2, 4, 6, 8, ... c.0, -2, -4, -6, ... d.1, 4, 9, 16, ...

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