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Math Help - value of

  1. #1
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    value of

    i wud like to ask ...
    if the maximum of y= 2x^2 + 8x + 3 =M and,
    the minimum of y= 3x^2 - 4 - 9 =N
    what is the value of M + N??
    thx
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  2. #2
    Senior Member
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    Nov 2007
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    Do you know about the maximum/minimum points of quadratic equations? If no take a look at this. You should be able to solve your problem after reading section Maximum and minimum points.
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  3. #3
    Senior Member
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    Quote Originally Posted by janeyandtaz View Post
    i wud like to ask ...

    if the maximum of y= 2x^2 + 8x + 3 =M and,

    the minimum of y= 3x^2 - 4 - 9 =N

    what is the value of M + N??

    thx
    i just want to ask how possible could there be a max on this y= 2x^2 + 8x + 3?
    Last edited by mr fantastic; October 10th 2009 at 01:26 AM. Reason: Added quote
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  4. #4
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    okey thx for the info
    oh ya its actually M = -2x^2 + 8x + 3, my mistake. thx
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