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1.4 Polynomial Functions Name and Rates of Change Practice Set 2 Date Period Problems 19 -21, Given the graphs below, find the point(s) of inflection by one of the three methods. Label and identify the coordinates of all points of inflection. State the method used. 19. -6 20. 2 . ........ 4.......-2. -.... 2. ........ .. . .... 21. 6 -2 24