Expression 7: "x" equals 3.7 5 left brace, 1 less than or equal to "y" less than or equal to 15 , right brace Has graph. To audio trace, press ALT+T.x=3.751≤y≤15
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Expression 8: "y" equals 7.5 4 left brace, 2.4 9 less than or equal to "x" less than or equal to 5.6 5 , right brace Has graph. To audio trace, press ALT+T.y=7.542.49≤x≤5.65
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Expression 9: "y" equals 10 left brace, 2 less than or equal to "x" less than or equal to 6 , right brace Has graph. To audio trace, press ALT+T.y=102≤x≤6
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Expression 10: "y" equals 12.5 left brace, 1.5 less than or equal to "x" less than or equal to 6.5 , right bracey=12.51.5≤x≤6.5
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Expression 11: "x" squared plus "y" squared minus 8.3 4 "x" minus 50 "y" plus 642.1 3 8 9 less than or equal to 0x2+y2−8.34x−50y+642.1389≤0