title: How do I show a plotted graph on R Markdown?
body: <p>I have created a parabola but I would like to show my work using R Markdown. I have put in the procedure as follows: </p>
  
  <p><code>{r}
  plot( function(x) 352 - 352*x + 91*(x^2))
  </code></p>
  
  <p><code>{r}
  p &lt;- polynomial(c(-10,-3,1))
  </code></p>
  
  <p><code>{r}
  plot(p, xlab="Beta", ylab="Sum of Squares")
  </code>
  </p>
  
  <p>I feel like I am doing it correctly but when I open the HTML document, it just shows a blue icon with a question mark in the middle (similar to when you open a browser but can't view the photo). Anybody Help? </p>