Expression 20: StartFraction, "f" Subscript, "y" , Baseline left parenthesis, "x" , right parenthesis Over 1 minus "b" plus "b" StartNestedFraction, "f" Subscript, "E" , Baseline left parenthesis, "x" , right parenthesis NestedOver .5 , EndNestedFraction , EndFraction minus 1.5 Has graph. To audio trace, press ALT+T.fyx1−b+bfEx.5−1.5
20
Expression 21: "b" equals 1b=1
00
11
21
Hidden Label: left parenthesis, 0 , "b" minus 3.5 , right parenthesis equals left parenthesis, 0 , negative 2.5 , right parenthesis Has graph. To audio trace, press ALT+T.0,b−3.5
Label
equals=
left parenthesis, 0 , negative 2.5 , right parenthesis0,−2.5
22
Expression 23: left parenthesis, 0 , "t" minus 3.5 , right parenthesis Has graph.0,t−3.5
domain t Minimum: 00
less than or equal to "t" less than or equal to≤t≤