Given the equation y=3x2−24x+48 with solutions of x=4 and x=4 , which of the following identifies the general shape of its associated graph?(1 point) Responses The graph opens downward. The graph opens downward. The entire graph lies above the x-axis. The entire graph lies above the x -axis. The vertex is to the left of the y-axis. The vertex is to the left of the y -axis. The graph opens upward.