Expression 15: StartRoot, StartFraction, "s" squared Over 4 , EndFraction minus "x" squared , EndRoot plus StartFraction, "s" Over 2 , EndFraction less than or equal to "y" less than or equal to StartRoot, "s" squared minus "x" squared , EndRoot left brace, 0 less than or equal to "x" less than or equal to StartFraction, "s" Over 2 , EndFraction , right brace Has graph. To audio trace, press ALT+T.s24−x2+s2≤y≤s2−x20≤x≤s2
15
Expression 16: StartRoot, StartFraction, "s" squared Over 4 , EndFraction minus left parenthesis, "x" minus StartFraction, "s" Over 2 , EndFraction , right parenthesis squared , EndRoot less than or equal to "y" less than or equal to StartRoot, "s" squared minus "x" squared , EndRoot left brace, StartFraction, "s" Over 2 , EndFraction less than or equal to "x" less than or equal to "s" , right brace Has graph. To audio trace, press ALT+T.s24−x−s22≤y≤s2−x2s2≤x≤s
16
Expression 17: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesis Has graph.polygonA,B,C,D
17
Expression 18: left parenthesis, StartFraction, "s" Over 2 , EndFraction plus StartFraction, "s" Over 2 , EndFraction cos "t" , StartFraction, "s" Over 2 , EndFraction sin "t" , right parenthesis Has graph.s2+s2cost,s2sint
domain t Minimum: 9090
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 180180
18
Expression 19: left parenthesis, StartFraction, "s" Over 2 , EndFraction plus StartFraction, "s" Over 2 , EndFraction cos "t" , StartFraction, "s" Over 2 , EndFraction sin "t" , right parenthesis Has graph.s2+s2cost,s2sint
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 180180
19
Expression 20: left parenthesis, StartFraction, "s" Over 2 , EndFraction cos "t" , StartFraction, "s" Over 2 , EndFraction plus StartFraction, "s" Over 2 , EndFraction sin "t" , right parenthesis Has graph.s2cost,s2+s2sint
domain t Minimum: negative 90−90
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 00
20
Expression 21: left parenthesis, StartFraction, "s" Over 2 , EndFraction cos "t" , StartFraction, "s" Over 2 , EndFraction plus StartFraction, "s" Over 2 , EndFraction sin "t" , right parenthesis Has graph.s2cost,s2+s2sint
domain t Minimum: negative 90−90
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 9090
21
Expression 22: left parenthesis, "s" cos "t" , "s" sin "t" , right parenthesis Has graph.scost,ssint
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
