式5: left parenthesis, "x" plus 37 , right parenthesis squared plus left parenthesis, "y" minus 16 , right parenthesis squared equals 15 squaredx+372+y−162=152
5
式6: "y" equals negative .0 1 left parenthesis, "x" plus 37 , right parenthesis squared plus 15 left brace, negative 51.6 less than "x" less than negative 22.4 , right bracey=−.01x+372+15−51.6<x<−22.4
6
式7: "y" equals negative .0 1 left parenthesis, "x" minus 37 , right parenthesis squared plus 15 left brace, 22.4 less than "x" less than 51.6 6 5 , right bracey=−.01x−372+1522.4<x<51.665
7
式8: "y" equals negative .0 1 left parenthesis, "x" minus 35 , right parenthesis squared plus 40 left brace, 14.4 less than "x" less than 53.2 , right bracey=−.01x−352+4014.4<x<53.2
8
式9: "y" equals negative .0 1 left parenthesis, "x" plus 35 , right parenthesis squared plus 40 left brace, negative 44.3 less than "x" less than negative 11.5 , right bracey=−.01x+352+40−44.3<x<−11.5