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og 11 q7

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og 11 q7

by mariah » Sun Jul 05, 2009 3:34 am
on the graph above, when x = 1/2, y = 2; and x =1,y=1. The graph is symmetric with repsect to the vertical linke at x = 2. According to the graph, when x = 3, y = ?

a -1
b -1/2
c 0
d 1/2
e 1

its from og11 , q#7.
i dont have og explanation and i am curious how it explains, bec. it took long from me to solve this problem.
pls be kind to post explanation...or give me a link to download og11 Quant explanation

thank u in advance...
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by real2008 » Sun Jul 05, 2009 8:59 am
where is the graph?
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by ghacker » Sun Jul 05, 2009 12:17 pm
Link : https://www.scribd.com/doc/6728767/GMAT-OG11-Math-Review
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by ghacker » Sun Jul 05, 2009 12:31 pm
If you see / resd the question the function is symmetric about X=2

hence by symmetry the answer is 1 (E)
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