表达式6: "y" equals left brace, negative 1 less than "x" less than 0 : 1 left parenthesis, "x" plus 3 , right parenthesis , right bracey=−1<x<0:1x+3
6
表达式7: "y" equals left brace, negative 1 less than "x" less than 0 : negative 1 left parenthesis, "x" minus 3 , right parenthesis , right bracey=−1<x<0:−1x−3
7
表达式8: "y" equals left brace, negative 1 less than "x" less than 1 : negative .5 left parenthesis, "x" minus 4 , right parenthesis plus 1.5 , right bracey=−1<x<1:−.5x−4+1.5
8
表达式9: left parenthesis, "x" minus 8.2 , right parenthesis squared plus left parenthesis, "y" minus 5 , right parenthesis squared equals .0 5x−8.22+y−52=.05
9
表达式10: left parenthesis, "x" minus 1 , right parenthesis squared plus left parenthesis, "y" minus 5 , right parenthesis squared equals .0 6x−12+y−52=.06
