title: R linear regression
body: <p>I have the formula y = x / (a+b*x) that I want to fit to the points (6,72) (211,183) (808,360) (200,440).  I put them in R using</p>
  
  <pre><code>x &lt;- c(6,211,808,200)
  y &lt;- c(72,183,360,440)
  </code></pre>
  
  <p>Now I want to the fit the function defined above to fit trough these points, and find a and b.
  How do I get a and b (using R) ? and, how do i get the formula in R?</p>