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Is this EIV flashcard answer wrong?

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leeannaj.85
 Post subject: Is this EIV flashcard answer wrong?
 Post Posted: Thu Jul 28, 2011 1:33 pm 
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Course Students


Posts: 3
I am totally second guessing myself here, but to be completely clear, can someone confirm that the answer to the following EIV flashcard should read "minimum value = -5, x=-7"?

What is the minimum value of f(x)= -5 + (X+7)^2, and at what value of x does it occur?

The flashcard is currently reading the opposite, that the min value is -7 and x equals -5. Thank you!
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varun_783
 Post subject: Re: Is this EIV flashcard answer wrong?
 Post Posted: Thu Jul 28, 2011 2:31 pm 
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Course Students


Posts: 263
Hi,

I have checked that flashcard and it seems fine. It is saying that x + 7 needs to be zero and therefore x = -7

Is this the flashcard that is asking for the coordinates?

Regards

Sunil
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leeannaj.85
 Post subject: Re: Is this EIV flashcard answer wrong?
 Post Posted: Thu Jul 28, 2011 4:03 pm 
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Course Students


Posts: 3
It's an EIV flashcard and asks:

What is the minimum value of f(x)=-5 + (X+7)^2, and at what value of x does it occur?

I understand the explanation given, but I do not think the bolded answer at the top of the flashcard corresponds to the explanation. The bolded answer says:

Answer: minimum value= -7, x=-5

shouldnt the minimum value supposed to equal -5 and x supposed to equal -7?
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varun_783
 Post subject: Re: Is this EIV flashcard answer wrong?
 Post Posted: Fri Jul 29, 2011 12:56 am 
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Course Students


Posts: 263
The one that I am seeing is this:

What are the coordinates of minimum of f(x)=-5 + (x +7)^2

Yours seems a little different. What is the flashcard number?

Regards

Sunil
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leeannaj.85
 Post subject: Re: Is this EIV flashcard answer wrong?
 Post Posted: Fri Jul 29, 2011 2:53 pm 
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Course Students


Posts: 3
EIV 9
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RonPurewal
 Post subject: Re: Is this EIV flashcard answer wrong?
 Post Posted: Sat Jul 30, 2011 3:32 am 
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ManhattanGMAT Staff


Posts: 7146
hi -- this is the wrong folder for this thread. please post a new thread in the GENERAL MATH QUESTIONS or MGMAT STRATEGY GUIDES folder.

thanks.
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