Expression 5: left parenthesis, StartFraction, left parenthesis, "x" plus .4 , right parenthesis Over 2 , EndFraction , right parenthesis squared plus left parenthesis, "y" minus 0.0 3 , right parenthesis squared equals .0 5 left brace, "y" greater than 0.0 3 , right brace Has graph. To audio trace, press ALT+T.x+.422+y−0.032=.05y>0.03
5
Expression 6: left parenthesis, left parenthesis, "x" plus .4 , right parenthesis plus 0.4 7 6 , right parenthesis to the 50th power left brace, 0 less than "x" less than 0.0 4 9 , right brace Has graph. To audio trace, press ALT+T.x+.4+0.476500<x<0.049
6
Expression 7: left parenthesis, negative left parenthesis, "x" plus .4 , right parenthesis plus 0.4 7 6 , right parenthesis to the 50th power left brace, 0 greater than "x" greater than negative 0.8 4 9 , right brace Has graph. To audio trace, press ALT+T.−x+.4+0.476500>x>−0.849
7
Expression 8: left parenthesis, "x" plus .3 , right parenthesis squared plus left parenthesis, StartFraction, "y" Over 2 , EndFraction minus 2 thirds , right parenthesis squared equals .0 1 Has graph. To audio trace, press ALT+T.x+.32+y2−232=.01
8
Expression 9: left parenthesis, "x" minus .3 , right parenthesis squared plus left parenthesis, StartFraction, "y" Over 2 , EndFraction minus 2 thirds , right parenthesis squared equals .0 1 Has graph. To audio trace, press ALT+T.x−.32+y2−232=.01