นิพจน์ 15: 3 equals StartFraction, 1 Over 3600 , EndFraction left parenthesis, "x" plus 9.4 , right parenthesis squared plus StartFraction, 1 Over 50 , EndFraction left parenthesis, "y" plus 90 , right parenthesis squared left brace, "b" less than "y" less than negative 79 , right brace3=13600x+9.42+150y+902b<y<−79
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นิพจน์ 16: "b" equals negative 85.8 7b=−85.87
negative 105−105
negative 79−79
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นิพจน์ 17: 3 equals StartFraction, 1 Over 3600 , EndFraction left parenthesis, "x" plus 9.4 , right parenthesis squared plus StartFraction, 1 Over 50 , EndFraction left parenthesis, "y" plus 100 , right parenthesis squared left brace, "k" less than "y" less than negative 89 , right brace3=13600x+9.42+150y+1002k<y<−89
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นิพจน์ 18: "k" equals negative 93.8 3k=−93.83
negative 115−115
negative 89−89
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นิพจน์ 19: "y" equals "w" plus 5 left parenthesis, "x" plus 63.4 , right parenthesis left brace, negative 150 plus "w" less than or equal to "y" less than or equal to negative 132 plus "w" , right bracey=w+5x+63.4−150+w≤y≤−132+w
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นิพจน์ 20: "y" equals "w" plus StartFraction, 1 Over 90 , EndFraction left parenthesis, "x" minus 47.5 , right parenthesis squared minus 280 left brace, negative 60.5 less than "x" less than 45 , right bracey=w+190x−47.52−280−60.5<x<45
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นิพจน์ 21: "y" equals "w" plus negative StartFraction, 1 Over 50 , EndFraction "x" minus 151.5 left brace, negative 93 less than "x" less than negative 60 , right bracey=w+−150x−151.5−93<x<−60
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นิพจน์ 22: "y" equals "w" plus 1 half left parenthesis, "x" minus 60 , right parenthesis squared minus 290 left brace, 42.6 less than "x" less than 55 , right bracey=w+12x−602−29042.6<x<55
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นิพจน์ 23: "y" equals "w" plus negative StartFraction, 1 Over 170 , EndFraction left parenthesis, "x" minus 80 , right parenthesis squared minus 295 left brace, 20 less than "x" less than 90 , right bracey=w+−1170x−802−29520<x<90
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นิพจน์ 24: "y" equals "w" plus negative StartFraction, 1 Over 1.9 , EndFraction "x" minus 248.5 left brace, 54.9 less than "x" less than 89.4 , right bracey=w+−11.9x−248.554.9<x<89.4
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นิพจน์ 25: "y" equals "w" plus 2 left parenthesis, "x" minus 35 , right parenthesis minus 290 left brace, 22.5 less than "x" less than 41 , right bracey=w+2x−35−29022.5<x<41
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นิพจน์ 26: "y" equals "w" plus 1 half left parenthesis, "x" minus 20 , right parenthesis squared minus 120 left brace, 11.5 less than "x" less than 30.2 , right bracey=w+12x−202−12011.5<x<30.2
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นิพจน์ 27: "y" less than or equal to 3sine left parenthesis, 1 eighth "p" "x" , right parenthesis minus 180y≤3sin18px−180
