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OpenStudy (anonymous):
In which interval will the graph of f(x) = x3 + 4x2 – 4x – 16 be above the x-axis? (-2, 2) È (4, ∞) (-4, -2) È (2, ∞) (-∞, -2) È (-2, 9) (-4, -2) È (2, 4)
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OpenStudy (anonymous):
please help
OpenStudy (anonymous):
I believe its d
OpenStudy (loser66):
What does "above x axis" mean?
OpenStudy (anonymous):
I might be wrong tho its definetly not a infinite since your graph probably ends on line segment, or does it go on forever?
OpenStudy (loser66):
One more try: @traplord What does "above x-axis" mean???
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