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Math Help - TI-89 Titanium, FINDING AN INTERSECTION

  1. #1
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    TI-89 Titanium, FINDING AN INTERSECTION

    i have the same problem as this guy

    http://www.mathhelpforum.com/math-he...ersection.html

    i did what he did but didn't get the same results
    this is what i do
    in the y= editor i put in
    y1=2x
    y2=-2x

    then i graph it
    press f5 and enter intersections

    then its gives me
    1st curve ?
    xc:.126582
    yc:-.253165

    well the answer is clearly 0,0 which i am not getting
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  2. #2
    Newbie
    Joined
    Jul 2008
    Posts
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    Quote Originally Posted by john doe View Post
    i have the same problem as this guy

    http://www.mathhelpforum.com/math-he...ersection.html

    i did what he did but didn't get the same results
    this is what i do
    in the y= editor i put in
    y1=2x
    y2=-2x

    then i graph it
    press f5 and enter intersections

    then its gives me
    1st curve ?
    xc:.126582
    yc:-.253165

    well the answer is clearly 0,0 which i am not getting
    So you pressed f5 and then you went to intersection

    Then you need to press enter two times to select the first and the second curve. Then come the bounds, this is what i do:
    for lower bound i move my cursor so it would be on left side of intersection and then press enter and for upper bound move cursor to the right side of intersection(note when you move the cursor it is supposed to be on a line) then press enter and it should give you the intersection
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