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Math Help - Problem With Graphing Cubic Functions on TI-89 Titanium

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    Problem With Graphing Cubic Functions on TI-89 Titanium

    When I graph a cubic function, all the positive x-values are being shown. However, all of the points that have a negative x-value are not being shown on the graph. Does anyone have a solution to this?
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    Re: Problem With Graphing Cubic Functions on TI-89 Titanium

    Have you adjusted your window?
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    Re: Problem With Graphing Cubic Functions on TI-89 Titanium

    Yep, i tried it. I put in my equation as x^1/3, maybe that is the problem?
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    Re: Problem With Graphing Cubic Functions on TI-89 Titanium

    Quote Originally Posted by rajschaudhry View Post
    Yep, i tried it. I put in my equation as x^1/3, maybe that is the problem?
    For starters, x^(1/3) is NOT a cubic, it's a cube ROOT. Is this what you are trying to graph, or should it be a cubic like x^3?
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    Re: Problem With Graphing Cubic Functions on TI-89 Titanium

    screen 1 ... entering y = x^(1/3)

    screen 2 ... how it looks after you enter it

    screen 3 ... graph of x^(1/3) in a decimal window
    Attached Thumbnails Attached Thumbnails Problem With Graphing Cubic Functions on TI-89 Titanium-screen01.jpg   Problem With Graphing Cubic Functions on TI-89 Titanium-screen02.jpg   Problem With Graphing Cubic Functions on TI-89 Titanium-screen03.jpg  
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