Problems 9-18, The graph of a polynomial function y = f(x), is shown at right. Identify the properties and characteristics in the exercises. 11. State the interval(s) where f(x) > 0 13. On what interval(s) of x is the graph increasing? (-1.5,12) 12 (4,3) 12. State the interval(s) where f(x) < 0 14. On what interval(s) of x is the graph decreasing?

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