document.write( "Question 621084:  what is the difference between f and fx\r
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
| Algebra.Com's Answer #390562 by vleith(2983)      You can put this solution on YOUR website! sometimes they mean the same thing. \n" ); document.write( "Sometimes someone will use f as the function, and f(x) to mean a specific point on that function. \n" ); document.write( "But most times, they mean the same thing. \n" ); document.write( "So \n" ); document.write( "f = x^2 + 4x + 9 is the same as \n" ); document.write( "f(x) = x^2 + 4x + 9 \n" ); document.write( " |