Changing overall scale of a graph in manim

Question

How do you change the overall scale of a graph in manim?

    self.graph_origin = 1 * RIGHT + 0.3 * DOWN
    self.setup_axes(animate = True)


    self.LINE = lambda x :  2 * x + 1
    LINE = self.get_graph(self.LINE, y_min = -3, y_max =3,  x_min = -2, x_max = 1.5, graph_origin = ORIGIN )

If I use

 self.get_graph(scale = 0.5)

This does not scale the axes.