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Which formula can be used to describe the sequence?

O f(x + 1) = f(x)
O f(x + 1) = - f(x)
O f(x) = f(x + 1)
O f(x) = - 3 f(x + 1)

Which formula can be used to describe the sequence? O f(x + 1) = f(x) O f(x + 1) = - f-example-1
User Roshaw
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1 Answer

3 votes

Answer:

f(x+1) = -3/4 × f(x)

Explanation:

first of all, the sign of the numbers in the sequence is alternating. so, there must be a "-" involved.

that eliminates the first and third answer options.

and the absolute values of the numbers in the sequence are going down. |f(x+1)| < |f(x)|

that eliminates the fourth answer option, as this says that

|f(x)| < |f(x+1)|. and that is the opposite of how the actual sequence behaves.

User Sakibmoon
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