Algebra

Graph and label the following two functions: f(x)=(x^2+7x+12)/(x+4) g(x)=(-x^2+3x+9)/(x-1) 1. Describe the domain and range for each of these functions. 2. Determine the equation(s) of any asymptotes found in the graphs of these functions, showing all work. 3. Discuss the conditions needed for a rational function to contain a slant asymptote.

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asked by Debra
  1. f is any x except x=-4, g is any x except x=1

    range, consider f
    f when x=-inf ; f= (inf)^2/inf
    when x=+inf; f= (inf)^2/inf

    so range of f is -inf to inf

    consider g
    when x=-inf; g-inf^2/-inf= -inf
    x=+inf; g= inf^2/inf= inf

    range is -inf to inf

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