newgraph
xaxis size 2 
yaxis size 1.5 

newcurve pts 0 6  1 9  2 11  3 14  4 18 5 20
newcurve marktype triangle linetype solid 
         pts 0 3  1 4  2 7  3 9  4 10 5 13
newcurve marktype none linetype dashed color 1 0 0
         pts 0 0  1 2  2 3  3 5  4 6  5 9