Expression 7: "y" equals sine left parenthesis, negative StartFraction, 1 Over 2 , EndFraction "x" , right parenthesis left brace, negative 2 pi less than "x" , right brace left brace, 2.8 greater than "x" , right bracey=sin−12x−2π<x2.8>x
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Expression 8: "y" equals sine left parenthesis, 1 half "x" , right parenthesis left brace, negative 5 pi less than "x" , right brace left brace, negative 6.5 greater than "x" , right bracey=sin12x−5π<x−6.5>x
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Expression 9: .6 left parenthesis, "x" plus 10 , right parenthesis squared plus 6 left parenthesis, "y" plus 1 , right parenthesis squared equals 3.6x+102+6y+12=3
9
Expression 10: StartFraction, left parenthesis, "x" plus 10 , right parenthesis squared Over 3 , EndFraction positive left parenthesis, "y" plus 1 , right parenthesis squared less than or equal to .6 squaredx+1023+y+12≤.62
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Expression 11: "x" equals negative 9.7 left brace, negative 3 less than "y" less than negative 1.5 , right bracex=−9.7−3<y<−1.5
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Expression 12: "y" equals negative 1 left brace, negative 12.2 greater than "x" greater than negative 15 , right bracey=−1−12.2>x>−15
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Expression 13: negative left parenthesis, "x" plus 13.2 , right parenthesis equals .5 "y" squared minus 4.8 left brace, negative 2.8 less than "y" less than negative 1.6 2 , right brace−x+13.2=.5y2−4.8−2.8<y<−1.62