表达式5: "y" equals left brace, 0 less than or equal to "x" less than or equal to 2 : negative 5 , 2 less than or equal to "x" less than or equal to 4 : 5 , 4 less than or equal to "x" less than or equal to 15 : 0 , right brace left brace, negative 6 less than or equal to "y" less than or equal to 6 , right bracey=0≤x≤2:−5,2≤x≤4:5,4≤x≤15:0−6≤y≤6
5
表达式6: "y" equals 2.5 minus StartFraction, 4 Over 12 , EndFraction "x" left brace, 0 less than or equal to "x" less than or equal to 15 , right brace left brace, negative 6 less than or equal to "y" less than or equal to 6 , right bracey=2.5−412x0≤x≤15−6≤y≤6
6
表达式7: "y" equals left brace, 0 less than or equal to "x" less than or equal to 6 : 0.5 , 6 less than "x" less than 16 : negative 1.5 plus StartFraction, 4 Over 12 , EndFraction "x" , right brace left brace, negative 6 less than or equal to "y" less than or equal to 6 , right bracey=0≤x≤6:0.5,6<x<16:−1.5+412x−6≤y≤6
7
表达式8: "y" equals left brace, 0 less than "x" less than 5 : 2.5 minus 0.5 "x" , 5 less than or equal to "x" less than 14.8 : 0 , 14.8 less than or equal to "x" less than 16.5 : negative 5 , right brace left brace, negative 6 less than or equal to "y" less than or equal to 6 , right bracey=0<x<5:2.5−0.5x,5≤x<14.8:0,14.8≤x<16.5:−5−6≤y≤6
8
表达式9: "y" equals left brace, 0 less than "x" less than 5 : 0 , 5 less than or equal to "x" less than 10 : 1 , 10 less than or equal to "x" less than 15 : negative 1 , right brace left brace, negative 6 less than or equal to "y" less than or equal to 6 , right bracey=0<x<5:0,5≤x<10:1,10≤x<15:−1−6≤y≤6
