import matplotlib.pyplot as plt
import numpy as np


fig = plt.figure()
ax = fig.add_subplot(111)
d=[-15,-14,-13,-12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
y=[]

d1=[-8,-7,-6,-5,-4,-3,-2,-1,1,2,3,4,5,6,7,8]
y1=[]

for x in d:
    y+=[(x)/(x**2+x+5)]

for x in d1:
    y1+=[((np.cos(x)+np.sin(x))/(x))]




ax.plot(d,y,'r')
ax.plot(d1,y1,'g')
ax.legend(['funkcja1','funkcja2'])
fig.suptitle('Wykreys funkcji xXx', fontsize=15, fontweight='bold')
ax.set_xlabel('oś x')
ax.set_ylabel('oś y')
plt.show()