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Math Help - How can I solve these equations by graphing?

  1. #1
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    How can I solve these equations by graphing?

    y=-3x+4
    x+y=2

    And the second question

    y=x+1
    y=-x+3
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  2. #2
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    Quote Originally Posted by imbadatmath View Post
    y=-3x+4
    x+y=2
    I'll do the first, you do the second.

    You want to graph the line
    y = -3x + 4

    and graph
    x + y = 2
    in other words:
    y = -x + 2

    The intersection point of the two graphs is your answer.

    -Dan
    Attached Thumbnails Attached Thumbnails How can I solve these equations by graphing?-graph.jpg  
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  3. #3
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    thanks i really appreciate it
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