Data annote (keep =X Y XSYS YSYS TEXT POSITION);
        set donnees;
        XSYS='2';YSYS='2';
        X= francais ; Y=maths ;
        TEXT=put(prenom,10.);
        POSITION='2';
run;

proc gplot data=donnees;
 plot maths*francais / annotate=annote;
run;