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Below is the graph of a polynomial function on the domain of All Real numbers. Estimate the answers to the following questions based on that graph-be as accurate as possible. 15 10 1. Where are the function's relative extrema? 2. Where are the function's absolute extrema? 3. On what interval(s) is the function's derivative positive? How did you determine this? 4. On what interval(s) is the function's derivative negative? How did you determine this? 5. For what value(s) of x ,if any, is the function's derivative equal to zero? How did you determine this