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Homework Help: Eliminating parameters and graphing parametric equations

  1. Apr 24, 2013 #1
    1. The problem statement, all variables and given/known data
    "Eliminate the parameter and graph the plane curve represented by the parametric equations."

    x=t^2, y=t-1; -1 ≦ t ≦ 3

    2. Relevant equations

    3. The attempt at a solution
    No need for you guys to graph; I can do that on my own. It would be a lot of work to have you guys graph something.

    Solved t with the y equation. y-1 = t
    Plugged that into x=t^2. Received x=(y-1)^2.
    My problem is that I'm not sure how to find the domain/range so that I can properly graph it. Thanks.
  2. jcsd
  3. Apr 24, 2013 #2


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    Science Advisor
    Homework Helper

    Isn't that y+1=t? It's probably easier just to graph it as a function of t. If you want to graph it in x-y coordinates then you should think of x as a function of y.
    Last edited: Apr 24, 2013
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