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f (x) is a function such that f (x) = 2x + f (x 1) for all x 2. It
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31 Oct 2023, 00:41
31 Oct 2023, 00:41
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Question Stats:
80% (01:05) correct
20% (00:34) wrong based on 10 sessions
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f (x) is a function such that f (x) = 2x + f (x − 1) for all x ≥ 2. It is known that f (1) = 1.
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
f (3) |
11 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
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Free Materials for the GRE General Exam - Where to get it!!
GRE Geometry Formulas
GRE - Math Book
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Free Materials for the GRE General Exam - Where to get it!!
GRE Geometry Formulas
GRE - Math Book
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f (x) is a function such that f (x) = 2x + f (x 1) for all x 2. It
[#permalink]
02 Dec 2023, 08:41
02 Dec 2023, 08:41
1
It makes sense to calculate f(2) and f(3) here since f(x) is a simple function.
We're given \(f(1) = 1\)
\(f(2) = 2(2) + f(1) = 4 + 1 = 5\)
\(f(3) = 2(3) + f(2) = 6 + 5 = 11\)
f(3) = 11, so C is the answer.
We're given \(f(1) = 1\)
\(f(2) = 2(2) + f(1) = 4 + 1 = 5\)
\(f(3) = 2(3) + f(2) = 6 + 5 = 11\)
f(3) = 11, so C is the answer.
gmatclubot
f (x) is a function such that f (x) = 2x + f (x 1) for all x 2. It [#permalink]
02 Dec 2023, 08:41
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