import matplotlib.pyplot as plt
import numpy as np

x = np.array([1, 1, 2, 3, 4, 4, 5, 6, 7, 7, 8, 9])
y = np.array([13, 14, 17, 12, 23, 24, 25, 25, 24, 28, 32, 33])

plt.scatter(x,y)
plt.plot(x, m*x+b)
plt.show()