Use the graph of the parabola to ll in the table. (a) Does the parabola open upward or downward? O upward downward (b) Find the equation of the axis of symmetry. equation of axis of symmetry: [I (c) Find the coordinates of the vertex. vertex: (1], [D (d) Find the intercept(s). For both the x- and y-intercept(s), make sure to do the following. o If there is more than one, separate them with commas. o If there are none, select "None". x-intercept(s): [I y-intercept(s): I]