matplotlib 2D scatter

import matplotlib.pyplot as plt


def show_trajectory(x, y, title):
         
    plt.figure(figsize=(10,6))   
    plt.title(title,fontsize=20)
    plt.xlabel('x',fontsize=14) 
    plt.ylabel('y',fontsize=14)
    # traj.set_xlim(1, 5)  
    # traj.set_ylim([10, 40])
    # traj.set_xticks(range(1, 5)) 
    # traj.set_yticks([(i*10) for i in range(1, 5)])

    plt.scatter(x, y, s=12, c ='r', marker='o')
    plt.show()