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    Tumandygram11's Avatar
    Tumandygram11 Posts: 1, Reputation: 1
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    #1

    Jul 23, 2013, 02:20 PM
    True or false
    The ordered pair (3,-2) is a solution to the system of inequalities, Y< x -3, Y> -x -2
    Enigma1999's Avatar
    Enigma1999 Posts: 2,223, Reputation: 1077
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    #2

    Jul 23, 2013, 06:26 PM
    We can't give you the answer, but we can help you. Did you plug in your x and y value? If so, what do you come up with?
    1102568's Avatar
    1102568 Posts: 65, Reputation: -1
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    #3

    Jul 23, 2013, 07:07 PM
    -2<3-3, -2>-3--2 The second half of the equation is wrong if y=-2. -3 takeaway -2 means -3 + 2, which equals -1. -2 is not bigger than -1 it is smaller than.

    So the answer is false.
    Enigma1999's Avatar
    Enigma1999 Posts: 2,223, Reputation: 1077
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    #4

    Jul 23, 2013, 07:17 PM
    That's what I got.
    Alty's Avatar
    Alty Posts: 28,317, Reputation: 5972
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    #5

    Jul 24, 2013, 12:42 AM
    Please see the rules concerning homework help on this site:

    Ask Me Help Desk - Announcements in Forum : Homework Help
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #6

    Jul 24, 2013, 05:45 AM
    Quote Originally Posted by Tumandygram11
    The ordered pair (3,-2) is a solution to the system of inequalities, Y< x -3, Y> -x -2
    Quote Originally Posted by 1102568
    -3 takeaway -2 means -3 + 2, which equals -1. -2 is not bigger than -1 it is smaller than.

    So the answer is false.
    I disagree. In the original post the OP wrote that the second inequality to evaluate is: Y > -x - 2. But here you are using Y > -x -(-2). Check your minus signs!
    Enigma1999's Avatar
    Enigma1999 Posts: 2,223, Reputation: 1077
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    #7

    Jul 24, 2013, 08:57 AM
    Quote Originally Posted by ebaines View Post
    I disagree. In the original post the OP wrote that the second inequality to evaluate is: Y > -x - 2. But here you are using Y > -x -(-2). Check your minus signs!
    2 negatives become a positive, right? I come up with -1 on the second part as well. -2 is not greater than -1, so the answer would be false, right? Unless I am missing a step, which I could be. It has been a while.
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #8

    Jul 24, 2013, 09:06 AM
    My point was that given Y> -x-2, if you substitiue -2 for Y and +3 for x and you get:

    -2 > -(3)-2, or

    -2 > -5

    which is true.
    Enigma1999's Avatar
    Enigma1999 Posts: 2,223, Reputation: 1077
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    #9

    Jul 24, 2013, 09:21 AM
    Quote Originally Posted by ebaines View Post
    My point was that given Y> -x-2, if you substitiue -2 for Y and +3 for x and you get:

    -2 > -(3)-2, or

    -2 > -5

    which is true.
    Ahh yes I see what my mistake was.

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