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Joined: 17 Oct 2013
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Two-Part Analysis [#permalink] New post 05 Nov 2013, 01:31
Dear All,

I was doing a free online practice test which I found through this website (Veritas GMAT Prep). I had a final score of 520 and need to get a total of 600. Where I missed out on massively - and actually did not get any of them right - were the two-part analysis questions in the quantitative section. I seriously struggled with these. I was also surprised to see them as I've purchased the Official GMAT Preperation guide and had never come across two-part analysis questions in the book.
My questions to you are:

1) Will these come up in the GMAT to such a large extent? (I believe 8/12 questions of one section were two-part analysis questions)

2) How do I solve them?
EG For all real values of x, the function (f)x = (x^2-4)^-1. Select one value for v and one value for w that fulfills the condition that f(v)=w.


v----------w
------------------- -1/4
------------------- 0
------------------- 1/4
------------------- 1/3
------------------- 3
------------------- 4

I hope this makes any sense.
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Re: Two-Part Analysis [#permalink] New post 05 Nov 2013, 06:09
1) Two part analysis is not part of the quantitative section, but part of integrated reasoning. This means that none of the two part analysis questions will count towards your score out of 800. They will count towards your integrated reasoning score which is out of 8. But yes, expect to see a few of them in the IR portion of the GMAT>

2) Easiest way to solve this is to just plug in numbers. The easiest thing to do first is let v= 0. Then w = -1/4, and it looks like we've already go the answer. But to be sure, you should let v = other choices as well, and you'll quickly figure out there's no correct choice for w for those given choices.
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Re: Two-Part Analysis [#permalink] New post 07 Nov 2013, 22:56
Expert's post
herbertvl wrote:
Dear All,

I was doing a free online practice test which I found through this website (Veritas GMAT Prep). I had a final score of 520 and need to get a total of 600. Where I missed out on massively - and actually did not get any of them right - were the two-part analysis questions in the quantitative section. I seriously struggled with these. I was also surprised to see them as I've purchased the Official GMAT Preperation guide and had never come across two-part analysis questions in the book.
My questions to you are:

1) Will these come up in the GMAT to such a large extent? (I believe 8/12 questions of one section were two-part analysis questions)

2) How do I solve them?
EG For all real values of x, the function (f)x = (x^2-4)^-1. Select one value for v and one value for w that fulfills the condition that f(v)=w.


v----------w
------------------- -1/4
------------------- 0
------------------- 1/4
------------------- 1/3
------------------- 3
------------------- 4

I hope this makes any sense.


Here is a discussion on two part analysis questions which are a part of the IR section, not the Quant section.
http://www.veritasprep.com/blog/2013/10 ... questions/
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Re: Two-Part Analysis   [#permalink] 07 Nov 2013, 22:56
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