title: How to draw a exponential function y=ab^x using d3.js axis functionality
body: <p>I am trying to draw an exponential function (y=ab^x) using the d3.js (javascript) library.  I understand how to draw the axes themselves. I just need the magic that draws the actual line.  I have seen description for the linear and quadratic equations but nothing more custom.</p>
  
  <p>Any help would be appreciated.</p>