表达式14: "x" equals negative 5 left brace, 1 greater than or equal to "y" greater than or equal to negative 5 , right bracex=−51≥y≥−5
14
表达式15: "x" equals 5 left brace, 1 greater than or equal to "y" greater than or equal to negative 5 , right bracex=51≥y≥−5
15
表达式16: "y" equals 1 left brace, negative 5 less than or equal to "x" less than or equal to 5 , right bracey=1−5≤x≤5
16
表达式17: "y" equals negative 5 left brace, negative 5 less than or equal to "x" less than or equal to 5 , right bracey=−5−5≤x≤5
17
表达式18: "y" equals negative 1 left brace, negative 5 less than or equal to "x" less than or equal to 5 , right bracey=−1−5≤x≤5
18
表达式19: "y" equals negative 3 left brace, negative 5 less than or equal to "x" less than or equal to 5 , right bracey=−3−5≤x≤5
19
表达式20: "x" equals negative 3 left brace, negative 3 less than or equal to "y" less than or equal to negative 1 , right bracex=−3−3≤y≤−1
20
表达式21: "x" equals 3 left brace, negative 3 less than or equal to "y" less than or equal to negative 1 , right bracex=3−3≤y≤−1
21
表达式22: "y" less than or equal to negative 1 "x" plus 20 left brace, 0 less than or equal to "x" less than or equal to 10 , right brace left brace, 10 less than or equal to "y" , right bracey≤−1x+200≤x≤1010≤y
22
表达式23: "y" less than or equal to 1 "x" plus 20 left brace, negative 10 less than or equal to "x" less than or equal to 0 , right brace left brace, 10 less than or equal to "y" , right bracey≤1x+20−10≤x≤010≤y
23
表达式24: "a" less than or equal to "x" less than or equal to "a" plus 2 left brace, 5 less than or equal to "y" less than or equal to 7 , right bracea≤x≤a+25≤y≤7
24
表达式25: "a" equals 4.9 4a=4.94
33
55
25
表达式26: "a" minus 10 less than or equal to "x" less than or equal to "a" minus 8 left brace, 5 less than or equal to "y" less than or equal to 7 , right bracea−10≤x≤a−85≤y≤7
