Expression 9: negative left parenthesis, 0.0 1 9 minus "x" , right parenthesis squared equals left parenthesis, "y" minus 0.5 , right parenthesis left brace, 0.5 5 greater than "x" , right brace left brace, "y" greater than 0.2 , right brace−0.019−x2=y−0.50.55>xy>0.2
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Expression 10: StartFraction, left parenthesis, .6 6 plus "x" , right parenthesis squared Over .5 5 , EndFraction plus StartFraction, left parenthesis, 1.4 5 minus "y" , right parenthesis squared Over 4 , EndFraction equals .2 1.66+x2.55+1.45−y24=.21
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Expression 11: StartFraction, left parenthesis, .6 6 minus "x" , right parenthesis squared Over .5 5 , EndFraction plus StartFraction, left parenthesis, 1.4 5 minus "y" , right parenthesis squared Over 4 , EndFraction equals .2 1.66−x2.55+1.45−y24=.21
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Expression 12: 4 left parenthesis, "x" , right parenthesis squared plus left parenthesis, 5 "y" , right parenthesis equals 1 left brace, 0.0 4 3 less than "y" , right brace4x2+5y=10.043<y
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Expression 13: 3 left parenthesis, 1 plus "x" "y" , right parenthesis plus StartFraction, 4 left parenthesis, 1 "x" , right parenthesis squared Over 2 , EndFraction plus StartFraction, 2.5 left parenthesis, 1.4 plus "y" , right parenthesis squared Over .6 6 , EndFraction equals 6 left brace, .3 2 3 less than "x" , right brace left brace, "y" less than negative 1.2 7 , right brace31+xy+41x22+2.51.4+y2.66=6.323<xy<−1.27
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Expression 14: 2.5 left parenthesis, .6 7 6 minus "x" , right parenthesis squared equals "y" minus 1.2 left brace, 1 greater than "x" , right brace left brace, "y" less than 1.5 2 , right brace2.5.676−x2=y−1.21>xy<1.52
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Expression 15: 2.5 left parenthesis, .6 6 plus "x" , right parenthesis squared equals "y" minus 1.2 left brace, 1 greater than "x" , right brace left brace, "y" less than 1.5 , right brace2.5.66+x2=y−1.21>xy<1.5
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Expression 16: 3 left parenthesis, 1 minus "x" "y" , right parenthesis plus StartFraction, 4 left parenthesis, 1 "x" , right parenthesis squared Over 2 , EndFraction plus StartFraction, 2.5 left parenthesis, 1.4 plus "y" , right parenthesis squared Over .6 6 , EndFraction equals 6 left brace, "x" less than negative .3 2 3 , right brace left brace, "y" less than negative 1.2 7 , right brace31−xy+41x22+2.51.4+y2.66=6x<−.323y<−1.27
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Expression 17: .6 9 left parenthesis, 8 plus "x" "y" , right parenthesis plus StartFraction, 6 left parenthesis, 2.9 minus "x" , right parenthesis squared Over 4 , EndFraction plus StartFraction, 3 left parenthesis, "y" , right parenthesis squared Over .9 , EndFraction equals 8 left brace, "x" greater than 2.5 , right brace left brace, "y" less than .6 0 5 , right brace.698+xy+62.9−x24+3y2.9=8x>2.5y<.605