Expression 7: negative 1 left parenthesis, "x" minus 4 , right parenthesis equals "y" minus 2 left brace, 4 less than or equal to "y" less than or equal to 5 , right brace−1x−4=y−24≤y≤5
7
Expression 8: "y" equals 8 left brace, 1 less than or equal to "x" less than or equal to 5 , right bracey=81≤x≤5
8
Expression 9: negative 1 left parenthesis, "x" minus 7 , right parenthesis equals "y" minus 5 left brace, 5 less than or equal to "y" less than or equal to 6 , right brace−1x−7=y−55≤y≤6
9
Expression 10: 2 left parenthesis, "x" minus 6 , right parenthesis equals "y" minus 3 left brace, 3 less than or equal to "y" less than or equal to 5 , right brace2x−6=y−33≤y≤5
10
Expression 11: "x" equals 6 left brace, 2 less than or equal to "y" less than or equal to 6 , right bracex=62≤y≤6