document.write( "Question 992487: For f(x)=1/2x, determine:
\n" ); document.write( "f(1)-f(3)
\n" ); document.write( "

Algebra.Com's Answer #612171 by ikleyn(52796)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "\"1%2F2\".\"1\" - \"1%2F2\".\"3\" = \"%281-3%29%2F2\" = \"%28-2%29%2F2\" = -1.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "If it is not a joke then what is this?\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );