code: # Exercise 5.35
  # Author: Noah Waterfield Price
  
  import numpy as np
  import matplotlib.pyplot as plt
  
  
  def f(x):
      r = np.zeros(len(x))
      r[x < 0] = -x[x < 0] - 5
      r[x >= 0] = x[x >= 0] - 5
      return abs(r)
  
  x = np.linspace(-10, 10, 101)
  plt.plot(x, f(x))
  plt.show()
  
apis: matplotlib.pyplot.show numpy.linspace