# How to plot this function

I want to plot functions (using some software, any recommendations?) that looks like this below. Could someone suggest equations of functions that would look like the graph below?

-
There are many of them: I have started to use Geogebra. –  user21436 Apr 4 '12 at 14:01
Thanks, could you give me an example? –  Gary Apr 4 '12 at 14:01
Have you tried: gnuplot (free), mathematica, matlab, ...? The functions you list could be more or less anything - how about $b(x) = (x/10)^2, h(x) = 1+b(x), g(x) = 2+b(x), f(x) = 3+b(x)$? –  Johannes Kloos Apr 4 '12 at 14:09
Thanks Johannes! –  Gary Apr 4 '12 at 14:51

Besides the excellent suggestions made by Johannes Kloos

Have you tried: gnuplot (free), mathematica, matlab, ...? The functions you list could be more or less anything - how about $b(x)=(x/10)^2$, $h(x)=1+b(x)$, $g(x)=2+b(x)$, $f(x)=3+b(x)$?

I'll add that fooplot is free, runs in a browser, and is very easy to use:

-
[> with(plots):