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Mathematics, 18.03.2021 01:00 lakesha04begaye

Find the zeros of f(x) = βˆ’x3 βˆ’ 2x2 + 7x βˆ’ 4. Then describe the behavior of the graph of f at each zero. A. 4, βˆ’1; As x β†’ βˆ’βˆž, f β†’ βˆ’βˆž. When βˆ’1 < x < 4, f < 0. At x = 4, f is tangent to the x-axis, so when x > 1, f β†’ ∞. B. βˆ’4, 1; As x β†’ βˆ’βˆž, f β†’ βˆ’βˆž. When βˆ’4 < x < 1, f > 0. At x = 1, f is tangent to the x-axis, so when x > 1, f β†’ βˆ’βˆž. C. 4, βˆ’1; As x β†’ βˆ’βˆž, f β†’ ∞. When βˆ’1 < x < 4, f > 0. At x = 4, f is tangent to the x-axis, so when x > 1, f β†’ ∞. D. βˆ’4, 1; As x β†’ βˆ’βˆž, f β†’ ∞. When βˆ’4 < x < 1, f < 0. At x = 1, f is tangent to the x-axis, so when x > 1, f β†’ βˆ’βˆž.

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Find the zeros of f(x) = βˆ’x3 βˆ’ 2x2 + 7x βˆ’ 4. Then describe the behavior of the graph of f at each ze...
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