import graph_pi;

real k=1.5;
real f(real x){return k*x*(1-x);}
graphicrules(xunit=40cm, yunit=20cm,
             xmin=0, xmax=.35, ymin=0, ymax=.35);

draw(graph(f));
cartesianaxis();
draw(graph(new real(real x){return x;}), grey);

draw(recursivegraph(f,.05,n=10),
     recursiveoption(Label("",UnFill),
                     labelalternate=true,
                     px=dashed+grey,
                     format="%.2f"),
     .8red);