If x # y = –1, which of the following could be true? I. x = y II. ... ...
If
x #
y = –1, which of the following could be true? I.
x =
y II.
x >
y III.
x <
y
(A) I only
(B) ...
(C) ...
(D) ...
(E) ...
*This question is included in
Nova Press: Set D - Defined functions
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Posted: 03/26/2012 02:08
Is there any way to solve for Scenarios I and III other than substitution? Phrased somewhat differently, who has the time to plug in an infinite number of possible numbers in a multivariable equation. I understand why II is facially wrong, but there has to be an easier way to determine that I and III are facially right.
Contributor
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Posted: 03/26/2012 10:28
Scott, if x=y, then 4x+y=-4 becomes 5x=-4, and x=y=-4/5. For x
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Posted: 03/26/2012 22:56
Thanks. Got it.
Contributor
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Posted: 03/26/2012 23:43
You are welcome, Scott. Please do us a favor and rate our app in the App Store.
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If x # y = –1, which of the following could be true? I. x = y II. ... ...
Posted: 10/19/2013 17:28
Where did you get 4/5 from?
Contributor
Reply 1 of 1
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Posted: 10/19/2013 21:57
Mohammed, 4 and 5 are just sample x and y that can be plugged into the equation to test the validity of the statements.
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If x # y = –1, which of the following could be true? I. x = y II. ... ...
Posted: 02/26/2014 17:24
But I don know the 4/5, will it success if I choose other sample?
Admin
Reply 1 of 1
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Posted: 02/28/2014 10:50
Michael, why don't try other sample numbers and see?
