def construct(self):
    self.add_integral_and_area()
    self.mention_lower_bound()
    self.drag_right_endpoint_to_zero()
    self.write_antiderivative_difference()
    self.show_alternate_antiderivative_difference()
    self.add_constant_to_antiderivative()
def construct(self):
    self.add_integral_and_area()
    self.mention_lower_bound()
    self.drag_right_endpoint_to_zero()
    self.write_antiderivative_difference()
    self.show_alternate_antiderivative_difference()
    self.add_constant_to_antiderivative()