college algebra

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graph the parabola, then determine the domain and range. f(x)=x^2x-4x-4

  • college algebra -

    assume you mean
    y + 4 = x^2 -4x

    y + 8 = x^2 - 4 x + 4

    y + 8 = (x-2)^2

    vertex at ( 2 , -8)
    so range is y >/= - 8
    domain is all real x

  • college algebra -

    so do i write the domain as (-infinity,infinity)

    not sure how to write the range you showed. It has to be in interval notation
    would it be (infinity,-8)?

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