2. The blue function below is the derivative of f(x) (f'(x)) and the red function is the second derivative of f(x) (f"(a)). Use this information to answer the questions below. Justify all of your answers. -1 -0.5 0.5 0 -06 0.5 2.5 (a) On approximately what z interval(s) is f(r) increasing and how do you know? (b) On approximately what a interval(s) is f(r) decreasing and how do you know? (c) On approximately what r interval(s) is f(r) concave up and how do you know? (d) On approximately what r interval(s) is f(r) concave down and how do you know?

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