式11: left parenthesis, "x" minus 8 , right parenthesis squared plus left parenthesis, "y" plus 8.4 , right parenthesis squared equals 280 left brace, 8.8 less than or equal to "x" , right bracex−82+y+8.42=2808.8≤x
11
式12: "y" equals negative "x" minus 20 left brace, negative 14 less than or equal to "x" less than or equal to negative 9 , right bracey=−x−20−14≤x≤−9
12
式13: "y" equals negative 0.4 5 "x" minus 12 left brace, negative 14 less than or equal to "x" less than or equal to negative 8 , right bracey=−0.45x−12−14≤x≤−8
13
式14: "y" equals left parenthesis, "x" minus 8 , right parenthesis squared minus 30 left brace, 1.2 5 left parenthesis, "y" plus 13 , right parenthesis squared plus left parenthesis, "x" minus 5 , right parenthesis squared greater than 200 , right brace left brace, "y" less than negative 3 , right bracey=x−82−301.25y+132+x−52>200y<−3
14
式15: "y" equals left parenthesis, "x" plus 3 , right parenthesis squared minus 30 left brace, 1.2 5 left parenthesis, "y" plus 13 , right parenthesis squared plus left parenthesis, "x" minus 5 , right parenthesis squared greater than 200 , right brace left brace, "y" less than negative 10 , right bracey=x+32−301.25y+132+x−52>200y<−10
15
式16: "y" equals "x" plus 4 left parenthesis, negative 5.5 , right parenthesis left brace, 6 less than or equal to "x" less than or equal to 10.5 5 , right bracey=x+4−5.56≤x≤10.55
16
式17: "y" equals "a" "x" plus 4 "b" left brace, 5.7 less than or equal to "x" less than or equal to 10.5 3 , right bracey=ax+4b5.7≤x≤10.53
17
式18: "a" equals 2.5a=2.5
negative 10−10
1010
18
式19: "b" equals negative 7.6b=−7.6
negative 10−10
1010
19
式20: 3 left parenthesis, "x" minus 25 , right parenthesis squared plus left parenthesis, "y" plus 10 , right parenthesis squared equals 50 left brace, left parenthesis, "x" minus 8 , right parenthesis squared plus left parenthesis, "y" plus 8.4 , right parenthesis squared less than 280 , right brace3x−252+y+102=50x−82+y+8.42<280
20
式21: left parenthesis, "x" minus 10 , right parenthesis squared plus left parenthesis, "y" minus 5 , right parenthesis squared equals 25 left brace, 9.8 less than "x" , right brace left brace, left parenthesis, "x" minus 8 , right parenthesis squared plus left parenthesis, "y" plus 8.4 , right parenthesis squared less than 280 , right bracex−102+y−52=259.8<xx−82+y+8.42<280
21
式22: left parenthesis, "x" minus 17 , right parenthesis squared plus 3 left parenthesis, "y" plus 20 , right parenthesis squared equals 40 left brace, left parenthesis, "x" minus 8 , right parenthesis squared plus left parenthesis, "y" plus 8.4 , right parenthesis squared less than 280 , right bracex−172+3y+202=40x−82+y+8.42<280
