yn(x,y) = 1 + 2/x 
xn(x,y) = y

set term pngc font "Arial,10" size 480,480
set out "multi_nolayout.png"
set xrange [0:6]
set yrange  [0:6]
set border 1+2
set tics nomirror
unset key
colors ="#ff0000 #00cc00 #990000 #006600 #330000"

set multiplot
set samples 100
plot 1 + 2/x lt -1 lw 1.5
plot x lt -1 lw 1.5
set samples 12
do for [i=2:6] {
yc = yp = xc = xp = 0.2*i
plot '+' u (xc=xn(xp,yp),yc=yn(xp,yp),xc):(xp=xc,yp=yc,yc) w lines\
     lc rgb word(colors,i-1)
}
unset multiplot

! display "multi_nolayout.png"