Expression 2: "z" equals "g" left parenthesis, "x" , "y" , right parenthesis left brace, negative "x" plus 5 less than or equal to "y" less than or equal to 5 , right brace left brace, 0 less than or equal to "x" less than or equal to 3 , right bracez=gx,y−x+5≤y≤50≤x≤3
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Expression 3: "z" equals 0 left brace, negative "x" plus 5 less than or equal to "y" less than or equal to 5 , right brace left brace, 0 less than or equal to "x" less than or equal to 3 , right bracez=0−x+5≤y≤50≤x≤3
