title: Graph Line Parallel to X Axis in Matplotlib
body: <p>I'm thinking this is extremely simple. I would like to graph the line y = 7.87.  This graphs a line parallel to the y-axis, but I'm looking for something horizontal, parallel with x-axis. Any ideas? </p>
  
  <pre><code>    import matplotlib.pyplot as plt
  
      plt.axvline(x = 7.85)
  
      plt.show() 
  </code></pre>