Expression 4: "y" squared plus "x" squared equals 2 Has graph. To audio trace, press ALT+T.y2+x2=2
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Expression 5: "y" squared minus "x" squared equals 2 Has graph. To audio trace, press ALT+T.y2−x2=2
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Expression 6: StartRoot, 2 , EndRoot "z" Subscript, "m" "u" "l" , Baseline left parenthesis, "z" Subscript, "u" "c" "a" , Baseline left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , left parenthesis, "t" , StartRoot, "t" squared minus 1 , EndRoot , right parenthesis , right parenthesis Has graph.2zmulzucaπ4,t,t2−1
domain t Minimum: negative 8−8
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 88
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Expression 7: StartRoot, 2 , EndRoot left parenthesis, "t" , StartRoot, "t" squared minus 1 , EndRoot , right parenthesis Has graph.2t,t2−1
domain t Minimum: negative 8−8
less than or equal to "t" less than or equal to≤t≤