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    bjavalos24's Avatar
    bjavalos24 Posts: 1, Reputation: 1
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    #1

    Feb 20, 2009, 09:18 PM
    how do i graph this inequality y<2x+2
    how do I graph this inequality y<2x+2
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #2

    Feb 20, 2009, 09:20 PM

    Graph the line, Y=2X+2.
    Figure out which area (above or below the line) is included when Y < 2X+2

    Note that the inequality sign is "<", so the area does not include the line.
    harum's Avatar
    harum Posts: 339, Reputation: 27
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    #3

    Feb 20, 2009, 09:31 PM

    First, plot the graph y=2x+2 and you are done. With this line, you have divided the plane into two parts. Everywhere on one side of the line y > 2x+2; on the line y = 2x+2; everywhere on the other side of the line y < 2x+2. What you have left is to find for which side of the two y < 2x+2. Hint: just pick a random point in one of the sides, let's say (x,y)=(0,0), or (1,1), which are below the line y=2x+2, and see if they satisfy or do not satisfy your inequality. Then try the other side and then pick one side on which the point satisfy the inequality.
    devildogg's Avatar
    devildogg Posts: 1, Reputation: 1
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    #4

    Jan 30, 2011, 09:22 PM
    Graph the inequality
    y < 2x + 2
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