Expression 7: "x" equals negative 8 left brace, negative 1.6 less than "y" less than 0.4 , right bracex=−8−1.6<y<0.4
7
Expression 8: "x" equals 8 left brace, negative 1.6 less than "y" less than 0.4 , right bracex=8−1.6<y<0.4
8
Expression 9: left parenthesis, "x" plus 6 , right parenthesis squared plus left parenthesis, "y" minus 4 , right parenthesis squared less than or equal to 4x+62+y−42≤4
9
Expression 10: left parenthesis, "x" minus 6 , right parenthesis squared plus left parenthesis, "y" minus 4 , right parenthesis squared less than or equal to 4x−62+y−42≤4
10
Expression 11: "y" equals negative 1 quarter left parenthesis, "x" plus 6 , right parenthesis squared plus 8 left brace, negative 8 less than or equal to "x" less than negative 4 , right bracey=−14x+62+8−8≤x<−4
11
Expression 12: "y" equals negative 1 quarter left parenthesis, "x" minus 6 , right parenthesis squared plus 8 left brace, 4 less than or equal to "x" less than 8 , right bracey=−14x−62+84≤x<8