algebra

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Let f(x)=x^4+2x^3-7x^2-8x+12.

A.) Discuss the short run behavior of
f(x).

B.) Discuss the long run behavior of
f(x).

  • algebra -

    A) When x = 0, f(x) = 12.
    The function probably crosses the x axis a few times. It is 0 when x = 1
    B) As x -> + or minus infinity, f(x) goes to infinity and becomes more symmetrical about the y axis, dominated by the x^4 term.

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