import numpy as np
import matplotlib.pyplot as plt

x = np.linspace(-5, 5, 20)
y = np.linspace(-5, 5, 20)
X, Y = np.meshgrid(x, y)

U = np.ones_like(X)  
V = -0.3 * Y  

plt.figure(figsize=(8, 6))
plt.quiver(X, Y, U, V, angles='xy', scale_units='xy', scale=1, color='r')

plt.xlim(-5, 5)
plt.ylim(-5, 5)
plt.xlabel('x')
plt.ylabel('y')
plt.grid()
plt.axhline(0, color='black',linewidth=0.5)
plt.axvline(0, color='black',linewidth=0.5)
plt.show()