import graph;

size(7.5cm,0);

path courbe=(.5,2){dir(-30)}..{0}(2.5,-2)..{dir(30)}(5,3);
draw(courbe,red);

// Autre façon de faire : utilisation de LIMITS
// void limits(picture pic=currentpicture, 
//             pair min, pair max, 
//             bool crop=NoCrop)

limits((-2,-3.5),(5.5,4.5));

yaxis("$y$",LeftRight(),
            red,
            Ticks(Step=1));

xaxis(Bottom(),
      blue,
      Ticks(Step=2),
      Arrow);

shipout(bbox(2mm,Fill(white)));