Use the graph of the function to estimate the intervals on which the function is increasing or decreasing. (Enter your answers using interval increasing (-3,00) X decreasing (-00, 3) X 10 X 10 8 6 4 2 4 6 8 10 6 18 10 Recall that a graphed function is increasing over an open interval where it slants upward and decreasing over an open interval where it slants down local extrema? Is the graphed function constant on any interval