input courbescp13; beginfig(1); cadre((0,0),(10,13)); origine((1,0.5)); unites(2,1); draw grille(0.5) withcolor bleu; draw axes withpen pencircle scaled 1.5bp; graduationx(btex 1 etex,1); graduationy(btex 1 etex,1); draw courbe1(0,4,2,-2*x+12); draw labelise1(btex $y=-2x+12$ etex,0.15); endfig; end