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Mathematics 23 Online
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)

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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