import numpy as np
import matplotlib.pyplot as plt

def piecewise_function(x):
if x <= -2:
return x
else:
return x + 6

x = np.linspace(-5, 5, 100)
y = [piecewise_function(i) for i in x]

plt.plot(x, y)
plt.title('Piecewise Function: y={x, если x≤-2; x+6, если x>-2')
plt.xlabel('x')
plt.ylabel('y')
plt.grid(True)
plt.show()