8. Consider the following sign diagrams relating to the graph of y = f(x) Sign diagram of f(x): + Sign diagram of f'(x): I. II. III. IV. -2 1 - -1 State intervals for which the graph is Above the x-axis Below the x-axis 3 5 + Increasing Decreasing a. Sketch a possible graph for of y = f(x) including a stationary point of inflexion.

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