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Consider the function f(x) = 12x + 45x4 - 360x3 + 7. f (x) has inflection points at (reading from left to right) x =

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Consider the function f(x) = 12x + 45x4 - 360x3 + 7. f (x) has inflection points at (reading from left to right) x = D, E, and F where D is and E is and Fis For each of the following intervals, tell whether f(a ) is concave up or concave do ( - oo, D): Concave Down V (D, E): Concave Up (E, F): Concave Down V (F, Oo): Concave Up

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