-6 6 setxrange
-4 4 setyrange
quadrillage
/f {
3 div 2 3 div sub
} def
tracerepere
marks
-1 dup f dashpoint
2 dup f point
1.2 setlinewidth
{f} courbe
setTimesItalic
(O) 0 0 dltext
<tex>
$y = ax+b$
</tex>
-4 dup f [1.2 dup] {-2 dup f 0 dup f angle} uctexlabel
|