Expression 12: "f" left parenthesis, "x" , right parenthesis equals left parenthesis, negative 2 thirds "x" plus 20 , right parenthesis left brace, 0 less than "x" less than 30 , right bracefx=−23x+200<x<30
12
Expression 13: min left parenthesis, "a" , 0 , right parenthesis less than "x" less than max left parenthesis, "a" , 0 , right parenthesis left brace, 0 less than or equal to "y" less than or equal to "f" left parenthesis, "a" , right parenthesis , right bracemina,0<x<maxa,00≤y≤fa
13
Expression 14: "x" equals 0 left brace, 0 less than "y" less than 20 , right bracex=00<y<20
14
Expression 15: "y" equals 20 left brace, 0 less than "x" less than 30 , right bracey=200<x<30
15
Expression 16: "x" equals 30 left brace, 0 less than "y" less than 20 , right bracex=300<y<20
16
Expression 17: left parenthesis, "x" minus 15 , right parenthesis squared plus left parenthesis, "y" minus 15 , right parenthesis squared less than or equal to 10x−152+y−152≤10
17
Expression 18: "x" equals 20 left brace, 10 less than "y" less than 20 , right bracex=2010<y<20
18
Expression 19: 20 greater than "y" greater than 10 left brace, 20 less than "x" less than 30 , right brace20>y>1020<x<30
19
Expression 20: 20 greater than "y" greater than 10 left brace, 20 less than "x" less than 30 , right brace20>y>1020<x<30
20
Expression 21: 20 greater than "y" greater than 10 left brace, 20 less than "x" less than 30 , right brace20>y>1020<x<30
21
Expression 22: left parenthesis, "x" minus 27.5 , right parenthesis squared plus left parenthesis, "y" minus 7.5 , right parenthesis squared less than or equal to 2.5 squaredx−27.52+y−7.52≤2.52
