MATH ASAP

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Eliminate the parameter to find a cartesian equation
x= 1-t^2
y=t-2
-2 _<t _<2

known: -4 <(or=) y <(or =) 0

I got y= sq(x-1)+2

  • MATH ASAP -

    Close.
    Rearrange x = 1 - t^2:
    t = ±√(1-x)

    Substitute into: y = t - 2
    y = -2 ± √(1-x)

    --Alternatively--
    Rearrange : y = t - 2
    t = y + 2

    Substitute into x = 1 - t^2
    x = 1 - (y+2)^2
    Thus:
    x = -3 - 4y - y^2

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