Expression 6: sine "x" left brace, 0 less than "x" less than pi , right brace Has graph. To audio trace, press ALT+T.sinx0<x<π
6
Expression 7: left parenthesis, "x" minus 4 , right parenthesis squared plus left parenthesis, "y" minus 5 , right parenthesis squared equals 5 left brace, 5 less than "y" , right brace Has graph. To audio trace, press ALT+T.x−42+y−52=55<y
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Expression 8: left parenthesis, "x" plus 5 , right parenthesis squared equals negative "y" plus 10 left brace, "y" greater than 5 , right brace Has graph. To audio trace, press ALT+T.x+52=−y+10y>5