Expression 28: "f" Subscript, 2 , Baseline left parenthesis, "x" , right parenthesis equals left brace, negative 2 less than or equal to "x" less than or equal to 2 : negative abs left parenthesis, "x" , right parenthesis plus 2 , 0 , right bracef2x=−2≤x≤2:−absx+2,0