Expression 6: "x" squared plus left parenthesis, "y" minus .5 "a" , right parenthesis squared less than or equal to .2 5 "a" squaredx2+y−.5a2≤.25a2
6
Expression 7: "x" squared plus left parenthesis, "y" minus left parenthesis, "a" plus .5 "b" , right parenthesis , right parenthesis squared less than or equal to .2 5 "b" squaredx2+y−a+.5b2≤.25b2
7
Expression 8: "x" squared plus left parenthesis, "y" minus left parenthesis, .5 left parenthesis, "a" plus "b" , right parenthesis plus 3 , right parenthesis , right parenthesis squared less than or equal to left parenthesis, 3 minus .5 "a" minus .5 "b" , right parenthesis squaredx2+y−.5a+b+32≤3−.5a−.5b2