Expression 6: "y" equals "t" equals 1 Has graph. To audio trace, press ALT+T.y=t
equals=
11
6
Expression 7: "g" equals left brace, "x" greater than 0 : "t" minus "t" times left parenthesis, 1 minus "r" , right parenthesis Superscript, "x" , Baseline , right brace Has graph. To audio trace, press ALT+T.g=x>0:t−t·1−rx
7
Expression 8: "y" equals left brace, "x" greater than "z" : "t" , right brace Has graph. To audio trace, press ALT+T.y=x>z:t
8
Expression 9: "x" equals "z" equals 991.2 5 8 8 7 1 0 4 9 Has graph. To audio trace, press ALT+T.x=z