表达式12: "y" equals negative 1 fifth left parenthesis, "x" minus 20 , right parenthesis squared plus 28 left brace, 25 less than or equal to "y" less than or equal to 29 , right bracey=−15x−202+2825≤y≤29
12
表达式13: "y" equals negative 1 fifth left parenthesis, "x" minus 28 , right parenthesis squared plus 28 left brace, 25 less than or equal to "y" less than or equal to 29 , right bracey=−15x−282+2825≤y≤29
13
表达式14: "y" equals 19.5 left brace, 7 less than "x" less than 32 , right bracey=19.57<x<32
14
表达式15: "x" equals negative 1 fifth left parenthesis, "y" minus 22 , right parenthesis squared plus 33.5 left brace, 19.5 less than or equal to "y" less than or equal to 25 , right bracex=−15y−222+33.519.5≤y≤25
15
表达式16: "x" equals 1 fifth left parenthesis, "y" minus 22 , right parenthesis squared plus 6 left brace, 19.5 less than or equal to "y" less than or equal to 25 , right bracex=15y−222+619.5≤y≤25
16
表达式17: "y" equals 5 left brace, negative 14.7 1 4 less than "x" less than negative 12 , right bracey=5−14.714<x<−12
17
表达式18: "x" equals 0 "y" minus 3 left brace, 5 less than "y" less than 7 , right bracex=0y−35<y<7
18
表达式19: "x" equals 0 "y" minus 2 left brace, 5 less than "y" less than 7 , right bracex=0y−25<y<7
19
表达式20: "x" equals 0 "y" minus 1 left brace, 5 less than "y" less than 7 , right bracex=0y−15<y<7
20
表达式21: "x" equals 0 "y" minus 80 left brace, negative 20 less than "y" less than 40 , right bracex=0y−80−20<y<40
21
表达式22: "y" equals 40 left brace, negative 80 less than "x" less than 80 , right bracey=40−80<x<80
22
表达式23: "x" equals 0 "y" plus 80 left brace, negative 20 less than "y" less than 40 , right bracex=0y+80−20<y<40
23
表达式24: "y" equals negative 20 left brace, negative 80 less than "x" less than 80 , right bracey=−20−80<x<80
