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What is the explicit formula for this sequence?

-7, -3, 1, 5, ...

A. an = 9+ (n − 1)(-4)
B. an-4+ (n-1)(-7)
C. an-7+ (n − 1)4
D. an-7+ (n-1)(-4)

1 Answer

3 votes

Answer:

It is C

Explanation:

It cannot be d bc - 7-4=-11 so rejected

Not b bc the first number is - 7

The same w a

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