A twice-differentiable function satisfies for all real

MATHEMATICS · Subjective · A Level · Mathematics · Differentiation · Differentiation

Problem

A twice-differentiable function ff satisfies f′′(x)=6x−12f''(x)=6x-12 for all real xx. Determine the intervals on which the graph of ff is concave upward and the intervals on which it is concave downward.

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