Expression 2: "y" equals "x" minus 1 left brace, 2 less than or equal to "x" less than or equal to 4 , right brace Has graph. To audio trace, press ALT+T.y=x−12≤x≤4
2
Expression 3: negative 2 thirds "x" plus 7 thirds left brace, negative 1 less than or equal to "x" less than or equal to 2 , right brace Has graph. To audio trace, press ALT+T.−23x+73−1≤x≤2