-2 6.01 setxrange
-2 4 setyrange
/xmarkstyle {dltext} def
/ymarkstyle {dltext} def
quadrillage
traceaxes
marks
0 ymark
/A {0 3} def
/B {3 0} def
/f {
setxvar
2 x mul 3 add
x neg Exp mul
} def
A B droite
1.2 setlinewidth
{f} courbe
setTimesItalic
(C) -1.3 dup f ultext
(A) A urtext
(B) B urtext
setSymbol
(D) -.5 3.5 urtext
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