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# f(x) = 2x – 3 f(m) = –11

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GRE Prep Club Legend
Joined: 07 Jun 2014
Posts: 4857
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 105

Kudos [?]: 1783 [0], given: 397

f(x) = 2x – 3 f(m) = –11 [#permalink]  30 Jul 2018, 10:25
Expert's post
00:00

Question Stats:

61% (00:41) correct 38% (00:34) wrong based on 13 sessions
$$f(x) = 2x - 3$$
$$f(m) = -11$$

 Quantity A Quantity B m $$\frac{1}{2} f(m)$$

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.
[Reveal] Spoiler: OA

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Sandy
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GRE Prep Club Legend
Joined: 07 Jun 2014
Posts: 4857
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 105

Kudos [?]: 1783 [1] , given: 397

Re: f(x) = 2x – 3 f(m) = –11 [#permalink]  11 Aug 2018, 16:40
1
KUDOS
Expert's post
Explanation

The problem gives a function, $$f(x) = 2x – 3$$, and then indicates that, when m is plugged in to the function, the answer is –11. Therefore:

$$2m - 3 = -11$$

$$2m = -8$$

$$m = -4$$

Quantity A is equal to –4. The problem indicates that f(m) = –11, so Quantity B is equal to = –5.5. Quantity A is greater.
_________________

Sandy
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Re: f(x) = 2x – 3 f(m) = –11   [#permalink] 11 Aug 2018, 16:40
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