Question: how to print the value of y correspond to figure

i have the list of figure that produced by bellow maple.
for i from 0 to 10 do
  y := i/2;
  f := 2*x + y;
  plot( f, x, color=black); od;
i want the value of y print corresspond to  each line  of figure. 
for Example, the first value of y =0 should be  printed  correspond to the first  line and so on.
 Thus, in dispaly plot, each line correspond to its value of y.
could please help me how to do this?

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