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Math Help - Can you help convert the following parametric equ. to cartesian equ.

  1. #1
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    Unhappy Can you help convert the following parametric equ. to cartesian equ.

    x=t(t-1)
    y=4t/1-t

    Can you help me convert the above equations to Cartesian equations?

    thanks a lot,
    Vidhu
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  2. #2
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    Re: Can you help convert the following parametric equ. to cartesian equ.

    Hello, vidhu!

    \begin{array}{ccc}x&=&\dfrac{t}{t-1} \\ \\[-4mm] y &=& \dfrac{4t}{1-t} \end{array}

    Can you help me convert the above equations to Cartesian equations?

    You have: . \begin{Bmatrix}x &=& \dfrac{t}{t-1} & [1] \\ \\[-3mm] y &=&-4\left(\dfrac{t}{t-1}\right) & [2] \end{Bmatrix}


    Substitute [1] into [2]: .  y \:=\:-4x

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