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    MsTaylor23's Avatar
    MsTaylor23 Posts: 41, Reputation: 1
    Junior Member
    		  
    #1

    Jun 7, 2007, 03:28 PM
    Interval Notation
    2<2x+4<10

    The answer I got is:

    2>2x+4 or 2x+4<10

    -2>2x or 2x<6

    -1>x or x<3
    snoopycool24's Avatar
    snoopycool24 Posts: 11, Reputation: 1
    New Member
    		  
    #2

    Jun 8, 2007, 06:32 PM
    Why did you flip the interval sign?

    2<2x+4 to 2>2x+4
    MsTaylor23's Avatar
    MsTaylor23 Posts: 41, Reputation: 1
    Junior Member
    		  
    #3

    Jun 9, 2007, 01:14 AM
    So I would leave the sign the way it was and is my answer correct?
    asterisk_man's Avatar
    asterisk_man Posts: 476, Reputation: 32
    Full Member
    		  
    #4

    Jun 9, 2007, 04:00 PM
    yes, -1<x<3
    you don't have to split into two parts. Just do the same thing to every portion.
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