title: Excel - steepest and least steep lines
body: <p>Is there any way in Excel that I can get the steepest line and least steep line, given a linear graph?</p>
  
  <p>If it's not possible to get these lines, is there a way I can (using Excel) calculate the gradient given a line. </p>
  
  <p>Below, the graph I am working with.</p>
  
  <p><img src="https://i.stack.imgur.com/DKnc6.png" alt="enter image description here"></p>