document.write( "Question 746360: y=7x-11 in function notation \n" ); document.write( "
Algebra.Com's Answer #454235 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "Replace y by f(x), which BTW does NOT mean \"f times x\"\r\n" );
document.write( "as you were taught earlier.  \r\n" );
document.write( "\r\n" );
document.write( "f(x) = 7x - 11\r\n" );
document.write( "\r\n" );
document.write( "\"f(x)\" means this:\r\n" );
document.write( "\r\n" );
document.write( "If you substitute a number for x in \"f(x)\" and also for x in \r\n" );
document.write( "the right side of the equation that defines f(x) and simplify,\r\n" );
document.write( "you will get the y-coordinate of the ordered pair that has \r\n" );
document.write( "that number as its x-coordinate which is a solution.\r\n" );
document.write( "\r\n" );
document.write( "For instance\r\n" );
document.write( "\r\n" );
document.write( "f(2) = 7(2) - 1\r\n" );
document.write( "f(2) = 14 - 1\r\n" );
document.write( "f(2) = 13\r\n" );
document.write( "\r\n" );
document.write( "So the ordered pair (2,13) is a solution to\r\n" );
document.write( "\r\n" );
document.write( "f(x) = 7x - 1\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );