PATTERNS, FUR1 2006 VCAA 1 MC

Which one of the following sequences shows the first five terms of an arithmetic sequence?

A. `1, 3, 9, 27, 81\ …`

B. `1, 3, 7, 15, 31\ …`

C. `– 10, – 5, 5, 10, 15\ …`

D. `– 4, – 1, 2, 5, 8\ …`

E. `1, 3, 8, 15, 24\ …`

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`D`

Show Worked Solution

`text(Only D has a consistent common difference)`

`text(between all values.)`

`rArr D`