import matplotlib.pyplot as plt

x = range(20,381,40)
y = [80.225988700564969, 87.947269303201509, 89.642184557438796, 91.713747645951031, 93.502824858757066, 93.220338983050837, 91.807909604519779, 89.642184557438796, 90.207156308851225, 89.92467043314501]
plt.plot(x,y)

plt.xlabel('Number of Features')
plt.ylabel('Accuracy')
plt.grid(True)
plt.savefig("test.png")
plt.show()