Expression 12: negative "x" equals left parenthesis, negative "y" plus 6 , right parenthesis squared minus 84 left brace, 60 less than or equal to "x" less than or equal to 90 , right brace−x=−y+62−8460≤x≤90
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Expression 13: negative "y" equals .1 left parenthesis, "x" minus 25 , right parenthesis squared minus 20 left brace, 17.2 less than or equal to "x" less than or equal to 32.9 , right brace−y=.1x−252−2017.2≤x≤32.9
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Expression 14: negative "y" equals .0 8 left parenthesis, "x" , right parenthesis squared minus 5.8 left brace, negative 9 less than or equal to "x" less than or equal to 8.5 , right brace−y=.08x2−5.8−9≤x≤8.5
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Expression 15: negative "y" equals .0 8 left parenthesis, "x" , right parenthesis squared minus 5.8 left brace, negative 9 less than or equal to "x" less than or equal to 8.5 , right brace−y=.08x2−5.8−9≤x≤8.5
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Expression 16: negative "y" equals .0 8 left parenthesis, "x" minus 49 , right parenthesis squared minus 6.5 left brace, 41 less than or equal to "x" less than or equal to 57.3 , right brace−y=.08x−492−6.541≤x≤57.3
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Expression 17: "x" equals "y" left brace, negative 3 less than or equal to "x" less than or equal to 3 , right bracex=y−3≤x≤3
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Expression 18: "x" equals negative "y" left brace, negative 3 less than or equal to "x" less than or equal to 3 , right bracex=−y−3≤x≤3
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Expression 19: "x" equals negative "y" plus 50 left brace, 46 less than or equal to "x" less than or equal to 52 , right bracex=−y+5046≤x≤52
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Expression 20: "x" equals "y" plus 48 left brace, 46 less than or equal to "x" less than or equal to 52 , right bracex=y+4846≤x≤52
