\n" );
document.write( "Hi, \n" );
document.write( "Note: Interval Notation \n" );
document.write( "• [ ] a square bracket includes end value listed, \n" );
document.write( "• ( ) a round bracket does not Note: round bracket is used for ∞ or −∞ \n" );
document.write( "\"x ≥ 5 is equivalent to [5,oo)? Yes