Initially, as xxx increases, yyy . Afterward, the slope of the graph of the function is equal to for all xxx between x=3x=3x, equals, 3 and x=5x=5x, equals, 5. The slope of the graph is equal to for xxx between x=5x=5x, equals, 5 and x=9x=9x, equals, 9. The greatest value of yyy is y=\:y=y, equals , and it occurs when x=\:x=x, equals .