Use the graph of the parabola to fill in the table. -10-8 -6 4 (a) Does the parabola open upward or downward? upward O downward (b) Find the coordinates of the vertex. vertex: D (c) Find the intercept(s). For both the x- and y-intercept(s), make sure to do the following. If there is more than one, separate them with commas. If there are none, select "None". x-intercept(s): y-intercept(s): (d) Find the equation of the axis of symmetry. equation of axis of symmetry: = 0,0,... None $