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xy>0 and x/|x|
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22 Feb 2023, 03:14
22 Feb 2023, 03:14
Expert Reply
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46% (00:51) correct
53% (00:45) wrong based on 58 sessions
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\(xy>0\)
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 |
\(\frac{x}{|x|}\) |
\(\frac{y}{|y|}\) |
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.
Re: xy>0 and x/|x|
[#permalink]
18 Mar 2023, 03:20
18 Mar 2023, 03:20
Expert Reply
xy>0 means that either the x and y are both positive or both negative
In both quantities we do know that the denominator is ALWAYS positive
QA positive / positive = positive
QB positive / positive = positive
OR
QA n/p=n
QB n/p=n
C is the answer
In both quantities we do know that the denominator is ALWAYS positive
QA positive / positive = positive
QB positive / positive = positive
OR
QA n/p=n
QB n/p=n
C is the answer
Re: xy>0 and x/|x|
[#permalink]
20 Dec 2023, 02:18
20 Dec 2023, 02:18
Carcass wrote:
xy>0 means that either the x and y are both positive or both negative
In both quantities we do know that the denominator is ALWAYS positive
QA positive / positive = positive
QB positive / positive = positive
OR
QA n/p=n
QB n/p=n
C is the answer
In both quantities we do know that the denominator is ALWAYS positive
QA positive / positive = positive
QB positive / positive = positive
OR
QA n/p=n
QB n/p=n
C is the answer
Please how are you able to determine which is greater, we only know x and y are both negative or positive. What about the numerical values of the variables?
