Question: Let f be the function given by f ( x ) = 2x^3- x^ 2-4 x +2 Part A: Identify the relative extrema of f

Let f be the function given by f(x) = 2x^3-x^2-4x+2

Part A: Identify the relative extrema of f. Justify if your value is a local minimum, local maximum, or neither.

Part B: On what interval(s) is the graph of f concave up? Concave down? Justify your answer.

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