def get_v_graph_and_label(self):
    graph = self.get_graph(v_func, x_min=0, x_max=8, color=VELOCITY_COLOR)
    graph_label = TexMobject('v(t)', '=t(8-t)')
    graph_label.set_color_by_tex('v(t)', VELOCITY_COLOR)
    graph_label.next_to(graph.point_from_proportion((7.0 / 8.0)), (UP + RIGHT))
    self.v_graph = graph
    self.v_graph_label = graph_label
    return (graph, graph_label)
def get_v_graph_and_label(self):
    graph = self.get_graph(v_func, x_min=0, x_max=8, color=VELOCITY_COLOR)
    graph_label = TexMobject('v(t)', '=t(8-t)')
    graph_label.set_color_by_tex('v(t)', VELOCITY_COLOR)
    graph_label.next_to(graph.point_from_proportion((7.0 / 8.0)), (UP + RIGHT))
    self.v_graph = graph
    self.v_graph_label = graph_label
    return (graph, graph_label)