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Math Help - Sketching the parametric curve

  1. #1
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    Sketching the parametric curve

    We have x(t)=1/3*t^3-5t and y(t)=t^2-2t

    We need to sketch this curve and identify where the curve crosses the x-axis and where it crosses the y-axis.

    I know how to graph x(t) and y(t), but how do you graph the actual curve?
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  2. #2
    MHF Contributor Bruno J.'s Avatar
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    Pick a few values of t, say t_0,...,t_n and draw the points (x(t_0),y(t_0)),...,(x(t_n),y(t_n)). When you have enough points that the shape of the curve is pretty clear then you can plot an approximation.
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