SOLUTION: f(x)=3x/(x-4)(x+4)
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Question 768084: f(x)=3x/(x-4)(x+4)
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Critical points at and . Also f crosses x axis at .
The THREE critical points form four intervals of the horizontal x axis. Vertical asymptotes at x=-4 and x=4.
INTERVALS_______________________SIGN
(-infin, -4)________(-)/(- -)_________(-)
(-4, 0)_____________(-)/(- +)_________(+)
(0, +4)_____________(+)/(- +)_________(-)
(+4, infin)_________(+)/(+ +)_________(+)
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