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2 votes
Which function can be used to model the graphed geometric sequence?

f(x + 1) = ⅚ f(x)
f(x + 1) = 6/5f(x)
f(x + 1) = ⅚ ^f(x)
f(x + 1) = 6/5^f(x)

User Sotomajor
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4.8k points

2 Answers

3 votes

A - f(x + 1) = ⅚ f(x)

Step-by-step explanation:

Right on the edge final!

I hope this helps!

- sincerelynini

User Trippedout
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4.5k points
1 vote

Answer: The correct option is 1, i.e.,
f(x+1)=(5)/(6)f(x).

Step-by-step explanation:

The geometric sequence is in the form of,


a,ar,ar^2,ar^3,....

Where, a is the first term of the sequence and r is the common ratio of the sequence.

It means the
n_(th) term of the sequence is defined as,


a_n=ar^(n-1)

So the the
(n+1)_(th) term of the sequence is defined as,


a_(n+1)=ar^n


a_(n+1)=r(ar^(n-1))


a_(n+1)=ra_n

It means the geometric sequence is in the form of,


f(x+1)=rf(x)

Where, r be any constant.

From the options only
f(x+1)=(5)/(6)f(x) is in the form of
f(x+1)=rf(x) with common ratio
(5)/(6).

Therefore, the function can be used to model the graphed geometric sequence is
f(x+1)=(5)/(6)f(x) .

User AdrianCooney
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5.0k points