r - plotting multiple lines on same axis, but with different starting points -

In my simple example, I try to plot the rows below x and I am Y , but I want to start with y 3 and go to 5. As of now y starts at time 1 and goes on time only 3.

  x   
 
 
  plot (x = 1: 5, y = x, type = "l") You must set both  x  and  y   
 
 Em> coordinates for a 2D plot. Otherwise R assumes that they start with 1 and go to the length (vector).