def draw_graph(self):
    graph = self.get_graph((lambda t: 10), x_min=0, x_max=8, color=VELOCITY_COLOR)
    self.play(ShowCreation(graph, rate_func=linear, run_time=3))
    self.wait()
    self.graph = graph
def draw_graph(self):
    graph = self.get_graph((lambda t: 10), x_min=0, x_max=8, color=VELOCITY_COLOR)
    self.play(ShowCreation(graph, rate_func=linear, run_time=3))
    self.wait()
    self.graph = graph