表达式3: "y" equals negative .0 2 left parenthesis, "x" , right parenthesis squared plus 15 left brace, negative 24.4 9 less than "x" less than 24.4 9 , right bracey=−.02x2+15−24.49<x<24.49
3
表达式4: "y" equals .0 1 5 left parenthesis, "x" , right parenthesis squared minus 6 left brace, negative 24.4 9 less than "x" less than 24.4 9 , right bracey=.015x2−6−24.49<x<24.49
4
表达式5: "x" squared plus "y" squared less than 112 left brace, .0 1 5 left parenthesis, "x" , right parenthesis squared minus 6 less than "y" , right bracex2+y2<112.015x2−6<y
