Expression 3: "f" left parenthesis, "x" , right parenthesis equals left brace, 10 greater than or equal to "N" Subscript, "o" "t" "e" "s" , Baseline left bracket, ceil left parenthesis, StartFraction, length left parenthesis, "N" Subscript, "o" "t" "e" "s" , Baseline , right parenthesis "x" Over 10 , EndFraction , right parenthesis , right bracket minus "o" Subscript, "f" "f" "s" "e" "t" , Baseline greater than or equal to 0 : "N" Subscript, "o" "t" "e" "s" , Baseline left bracket, ceil left parenthesis, StartFraction, length left parenthesis, "N" Subscript, "o" "t" "e" "s" , Baseline , right parenthesis "x" Over 10 , EndFraction , right parenthesis , right bracket minus "o" Subscript, "f" "f" "s" "e" "t" , Baseline , "N" Subscript, "o" "t" "e" "s" , Baseline left bracket, ceil left parenthesis, StartFraction, length left parenthesis, "N" Subscript, "o" "t" "e" "s" , Baseline , right parenthesis "x" Over 10 , EndFraction , right parenthesis , right bracket minus "o" Subscript, "f" "f" "s" "e" "t" , Baseline minus 10sign left parenthesis, "N" Subscript, "o" "t" "e" "s" , Baseline left bracket, ceil left parenthesis, StartFraction, length left parenthesis, "N" Subscript, "o" "t" "e" "s" , Baseline , right parenthesis "x" Over 10 , EndFraction , right parenthesis , right bracket minus "o" Subscript, "f" "f" "s" "e" "t" , Baseline , right parenthesis , right brace Has graph. To audio trace, press ALT+T.fx=10≥NotesceillengthNotesx10−offset≥0:NotesceillengthNotesx10−offset,NotesceillengthNotesx10−offset−10signNotesceillengthNotesx10−offset