運算式 8: "y" equals 1.5 "x" minus 2.5 left brace, negative 2.5 less than or equal to "y" less than or equal to negative 1 , right bracey=1.5x−2.5−2.5≤y≤−1
8
運算式 9: left parenthesis, "x" plus 1 , right parenthesis squared plus left parenthesis, "y" plus 2.5 , right parenthesis squared equals 1 left brace, "y" less than or equal to negative 2.5 , right bracex+12+y+2.52=1y≤−2.5
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運算式 10: left parenthesis, "x" minus 1 , right parenthesis squared plus left parenthesis, "y" plus 2.5 , right parenthesis squared equals 1 left brace, "y" less than or equal to negative 2.5 , right bracex−12+y+2.52=1y≤−2.5
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運算式 11: "y" equals 1.5 left parenthesis, "x" minus 1.5 , right parenthesis plus 6 left brace, 4.9 3 less than or equal to "y" less than or equal to 8.9 5 , right bracey=1.5x−1.5+64.93≤y≤8.95
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運算式 12: "y" equals negative 1.5 left parenthesis, "x" plus 1.5 , right parenthesis plus 6 left brace, 4.9 3 less than or equal to "y" less than or equal to 8.9 5 , right bracey=−1.5x+1.5+64.93≤y≤8.95
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運算式 13: "y" equals negative 5.5 left parenthesis, "x" minus 4 , right parenthesis plus 6 left brace, 1 less than or equal to "y" less than or equal to 8.9 5 , right bracey=−5.5x−4+61≤y≤8.95
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運算式 14: "y" equals 5.5 left parenthesis, "x" plus 4 , right parenthesis plus 6 left brace, 1 less than or equal to "y" less than or equal to 8.9 5 , right bracey=5.5x+4+61≤y≤8.95
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運算式 15: "y" equals 1.5 left parenthesis, "x" minus 2.5 , right parenthesis plus 6.5 left brace, 4.8 3 less than or equal to "y" less than or equal to 7.5 , right bracey=1.5x−2.5+6.54.83≤y≤7.5
