表达式31: "y" equals negative 20 left brace, 20 less than or equal to "x" less than or equal to 30 , right bracey=−2020≤x≤30
31
表达式32: "y" equals negative 1 half "x" minus 20 left brace, 10 less than or equal to "x" less than or equal to 20 , right bracey=−12x−2010≤x≤20
32
表达式33: "y" equals negative 1 half "x" minus 10 left brace, 10 less than or equal to "x" less than or equal to 20 , right bracey=−12x−1010≤x≤20
33
表达式34: "y" equals negative "x" minus 5 left brace, 5 less than or equal to "x" less than or equal to 10 , right bracey=−x−55≤x≤10
34
表达式35: "y" equals negative "x" minus 15 left brace, 0 less than or equal to "x" less than or equal to 10 , right bracey=−x−150≤x≤10
35
表达式36: "y" equals "x" minus 15 left brace, 0 less than or equal to "x" less than or equal to 5 , right bracey=x−150≤x≤5
36
表达式37: "y" equals 0.8 "x" plus 47 left brace, 2.5 less than or equal to "x" less than or equal to 10 , right bracey=0.8x+472.5≤x≤10
37
表达式38: "y" equals negative 0.8 "x" plus 23 left brace, 2.5 less than or equal to "x" less than or equal to 10 , right bracey=−0.8x+232.5≤x≤10
38
表达式39: "y" equals negative 1.2 "x" plus 23.9 left brace, negative 5 less than or equal to "x" less than or equal to 2.5 , right bracey=−1.2x+23.9−5≤x≤2.5
39
表达式40: "y" equals negative 1.2 "x" plus 65.9 left brace, 47.5 less than or equal to "x" less than or equal to 55 , right bracey=−1.2x+65.947.5≤x≤55
40
表达式41: "y" equals negative 0.8 "x" plus 46.9 left brace, 40 less than or equal to "x" less than or equal to 47.5 , right bracey=−0.8x+46.940≤x≤47.5
41
表达式42: "y" equals 1.2 "x" minus 75.9 left brace, 47.5 less than or equal to "x" less than or equal to 55 , right bracey=1.2x−75.947.5≤x≤55
42
表达式43: "y" equals 0.8 "x" minus 56.9 left brace, 40 less than or equal to "x" less than or equal to 47.5 , right bracey=0.8x−56.940≤x≤47.5
43
表达式44: "x" equals 20 left brace, negative 40 less than "y" less than 70 , right bracex=20−40<y<70
44
表达式45: "x" equals 30 left brace, negative 40 less than "y" less than 70 , right bracex=30−40<y<70
45
表达式46: "y" equals 70 left brace, 20 less than "x" less than 30 , right bracey=7020<x<30
46
表达式47: "y" equals negative 40 left brace, 20 less than "x" less than 30 , right bracey=−4020<x<30
47
表达式48: "x" equals negative 70 left brace, negative 30 less than "y" less than 60 , right bracex=−70−30<y<60
48
表达式49: "y" equals negative 3 "x" minus 130 left brace, negative 10 less than "y" less than 60 , right bracey=−3x−130−10<y<60
49
表达式50: "x" equals negative 60 left brace, negative 30 less than "y" less than 10 , right bracex=−60−30<y<10
50
表达式51: "y" equals negative 3 "x" minus 170 left brace, negative 30 less than "y" less than 10 , right bracey=−3x−170−30<y<10
51
表达式52: "y" equals negative 30 left brace, negative 46 less than "x" less than negative 34 , right bracey=−30−46<x<−34
52
表达式53: "y" equals 3 "x" plus 110 left brace, negative 10 less than "y" less than 60 , right bracey=3x+110−10<y<60
53
表达式54: "y" equals 3 "x" plus 71 left brace, negative 30 less than "y" less than 10 , right bracey=3x+71−30<y<10
54
表达式55: "x" equals negative 20 left brace, negative 30 less than "y" less than 10 , right bracex=−20−30<y<10
55
表达式56: "x" equals negative 10 left brace, negative 30 less than "y" less than 60 , right bracex=−10−30<y<60
56
表达式57: "y" equals negative 30 left brace, negative 70 less than "x" less than negative 60 , right bracey=−30−70<x<−60
57
表达式58: "y" equals negative 30 left brace, negative 20 less than "x" less than negative 10 , right bracey=−30−20<x<−10
58
表达式59: "y" equals 60 left brace, negative 70 less than "x" less than negative 64 , right bracey=60−70<x<−64
59
表达式60: "y" equals 60 left brace, negative 16 less than "x" less than negative 10 , right bracey=60−16<x<−10