Expression 1: "y" equals left brace, negative 4 less than or equal to "x" less than or equal to negative 2 : negative 1.5 , negative 2 less than "x" less than or equal to 2 : 3 quarters "x" , 2 less than "x" less than or equal to 4 : 1.5 , right brace Has graph. To audio trace, press ALT+T.y=−4≤x≤−2:−1.5,−2<x≤2:34x,2<x≤4:1.5