document.write( "Question 330930: Why does f represent the gragh of a function? \n" ); document.write( "
Algebra.Com's Answer #237242 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
I think f is just a hold over from \"function of x\".
\n" ); document.write( "It's just easier to write f(x) instead of function of x.
\n" ); document.write( "Usually people try to be more descriptive such as the height of water in a tank might be h(x) or the pressure in the cylinder might be p(z), so that you can connect the mathematical model with what's going on physically.
\n" ); document.write( "
\n" );