Question

Which formula can be used to describe the sequence?

Negative 3, three-fifths, negative StartFraction 3 Over 25 EndFraction, StartFraction 3 Over 125 EndFraction, negative StartFraction 3 Over 625 EndFraction

f(x) = −3(One-fifth) Superscript x minus 1
f(x) = −3(Negative one-fifth) Superscript x minus 1
f(x) = Negative one-fifth(3)x − 1
f(x) = Negative one-fifth(−3)x − 1

Answer 1

Answer:

B

Step-by-step explanation:

I think your answer will be B! Good luck :)

Answer 2

A geometric series is the collection of an unlimited number of terms with a fixed ratio between them. The correct option is B.

What is geometrical series?

A geometric series is the collection of an unlimited number of terms with a fixed ratio between them.

Given the sequence -3, (3/5), -(3/25), (3/125), -(3/625),.....

As it can be observed that the given function is a geometric function, where the common ratio is,

Common ratio = (3/5) / -3

                        = -(1/5)

Also, it can be observed that the first term of the geometric progression is -3. Therefore, the formula that can be used for the geometric progression is,

f(x) = −3(− 1/5)⁽ˣ⁻¹⁾

Learn more about Geometrical Series:

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