import matplotlib.pyplot as plt

x = [1, 2, 3, 4, 5]
y = [10, 20, 30, 25, 15]
plt.plot(x, y, label='Sales', color='blue')
plt.title('Line Plot - Sales Over Days')
plt.xlabel('Days')
plt.ylabel('Sales')
plt.legend()
plt.grid(True)
plt.savefig('line_plot.png')
plt.show()