title: Plot line function in R
body: <p>I have a function</p>
  
  <pre><code>1.0 * (375 - 515) * exp(-0.01 * x) + 515
  </code></pre>
  
  <p>in which <code>x</code> = time in milliseconds. I would like to draw that line in an R plot within a given range of <code>x</code> (in my case between 80 and 250), with <code>x</code> on the x-axis and a given range 800-300 on the y-axis (the intersection between the axes being where x = 80 and y = 800).</p>
  
  <p>How can I do this?</p>