表达式11: "y" equals 1 "x" plus 50 left brace, negative 50 greater than "x" greater than negative 100 , right bracey=1x+50−50>x>−100
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表达式12: "y" equals negative 1 "x" plus negative 100 left brace, negative 100 less than "x" less than negative 50 , right bracey=−1x+−100−100<x<−50
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表达式13: left parenthesis, "x" minus left parenthesis, negative 25 , right parenthesis , right parenthesis squared plus left parenthesis, "y" minus 25 , right parenthesis squared equals 25 squaredx−−252+y−252=252
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表达式14: left parenthesis, "x" minus left parenthesis, negative 75 , right parenthesis , right parenthesis squared plus left parenthesis, "y" minus "k" , right parenthesis squared equals 25 squaredx−−752+y−k2=252
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表达式15: "k" equals 123.8k=123.8
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表达式16: left parenthesis, "x" minus 25 , right parenthesis squared plus left parenthesis, "y" minus left parenthesis, negative 25 , right parenthesis , right parenthesis squared equals 25 squaredx−252+y−−252=252
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表达式17: left parenthesis, "x" minus left parenthesis, negative 25 , right parenthesis , right parenthesis squared plus left parenthesis, "y" minus 75 , right parenthesis squared equals 25 squaredx−−252+y−752=252
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表达式18: "y" equals negative 1 "x" plus negative 50 left brace, negative 50 less than "x" less than 0 , right bracey=−1x+−50−50<x<0
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表达式19: "y" equals 1 "x" plus 0 left brace, negative 50 less than "x" less than 0 , right bracey=1x+0−50<x<0
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表达式20: "y" equals negative 1 "x" plus 0 left brace, negative 100 less than "x" less than 50 , right bracey=−1x+0−100<x<50
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表达式21: 100 greater than or equal to "y" greater than or equal to negative 50 left brace, negative 100 less than "x" less than 50 , right brace100≥y≥−50−100<x<50