Posted by danny on Friday, December 7, 2007 at 2:26am.
Let f(x)=x^4+2x^37x^28x+12.
A.) Discuss the short run behavior of
f(x).
B.) Discuss the long run behavior of
f(x).

algebra  drwls, Friday, December 7, 2007 at 3:16am
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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