title: matplotlib.pyplot is not showing graph?
body: <p><a href="https://i.stack.imgur.com/SKe38.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/SKe38.png" alt="Jupyter notebooks image" /></a></p>
  <p>I don't understand why the graph is not showing. All the variables spelled correctly and all the cells seem to work perfectly. But the <strong>matplotlib.pyplot.show()</strong> isn't working. Any help appreciated.</p>