式11: left parenthesis, "x" minus 12 , right parenthesis squared plus left parenthesis, "y" minus 3 , right parenthesis squared equals .2 5x−122+y−32=.25
11
式12: "x" equals 4 left brace, 4 less than or equal to "y" less than or equal to 6 , right bracex=44≤y≤6
12
式13: "x" equals 8 left brace, 4 less than or equal to "y" less than or equal to 6 , right bracex=84≤y≤6
13
式14: "y" equals 6 left brace, 4 less than or equal to "x" less than or equal to 8 , right bracey=64≤x≤8
14
式15: "x" equals 5 left brace, 6 less than or equal to "y" less than or equal to 8 , right bracex=56≤y≤8
15
式16: "x" equals 6 left brace, 6 less than or equal to "y" less than or equal to 8 , right bracex=66≤y≤8
16
式17: "y" equals 8 left brace, 5 less than or equal to "x" less than or equal to 6 , right bracey=85≤x≤6
17
式18: "y" equals negative 1 left parenthesis, negative 50 plus 7 "x" , right parenthesis squared minus 300 "k" left brace, 0 less than "y" , right bracey=−1−50+7x2−300k0<y
18
式19: "k" equals negative 8.2 5k=−8.25
negative 10−10
1010
19
式20: "y" equals negative left parenthesis, "x" minus 17 , right parenthesis squared plus 7 left brace, 0 less than "y" , right bracey=−x−172+70<y
20
式21: "x" equals "a" times sine left parenthesis, 2 "y" , right parenthesis plus 6 left brace, 8 less than "y" less than 20 , right bracex=a·sin2y+68<y<20