式15: left parenthesis, "x" minus "a" , right parenthesis squared plus left parenthesis, "y" minus "b" , right parenthesis squared less than 10x−a2+y−b2<10
15
式16: "f" left parenthesis, "x" , right parenthesis equals negative left parenthesis, StartFraction, "x" Over 10 , EndFraction , right parenthesis squared plus 25fx=−x102+25
16
式17: "y" greater than or equal to left parenthesis, .3 6 "x" plus 7 , right parenthesis squared minus 4 left brace, "y" less than 1 , right bracey≥.36x+72−4y<1
17
式18: "y" greater than or equal to left parenthesis, .3 6 "x" plus 7 , right parenthesis squared minus 4 left brace, "y" less than 1 , right bracey≥.36x+72−4y<1
18
式19: "b" equals "f" left parenthesis, "t" , right parenthesisb=ft
19
式20: "y" equals 1.7 5 "x" positive 46.2 left brace, 4 less than "y" less than 12 , right bracey=1.75x+46.24<y<12
20
式21: "y" equals 4 left brace, negative 24 less than "x" less than negative 19.5 , right bracey=4−24<x<−19.5
21
式22: left parenthesis, "x" plus 15 , right parenthesis squared plus left parenthesis, "y" minus 17 , right parenthesis squared less than or equal to 4x+152+y−172≤4
22
式23: left parenthesis, "x" plus 12 , right parenthesis squared plus left parenthesis, "y" minus 17 , right parenthesis squared less than or equal to 4x+122+y−172≤4
23
式24: left parenthesis, "x" plus 18 , right parenthesis squared plus left parenthesis, "y" minus 17 , right parenthesis squared less than or equal to 4x+182+y−172≤4
24
式25: left parenthesis, "x" plus 15 , right parenthesis squared plus left parenthesis, "y" minus 20 , right parenthesis squared less than or equal to 4x+152+y−202≤4
25
式26: "t" equals 3.1t=3.1
26
式27: "a" equals "t"a=t
27
式28: left parenthesis, "x" minus "a" , right parenthesis squared plus left parenthesis, "y" minus "b" , right parenthesis squared less than 10x−a2+y−b2<10