max: left parenthesis, negative 1 , 1 , right parenthesis Has graph. To audio trace, press ALT+T.−1,1
Label:
4
saddle: left parenthesis, negative 1 half , 1 quarter , right parenthesis equals left parenthesis, negative 0.5 , 0.2 5 , right parenthesis Has graph. To audio trace, press ALT+T.−12,14
Label:
equals=
left parenthesis, negative 0.5 , 0.2 5 , right parenthesis−0.5,0.25
5
Expression 6: "y" equals 6 left brace, negative 6 less than "x" less than negative 2 , right brace Has graph. To audio trace, press ALT+T.y=6−6<x<−2
6
z=${z} left parenthesis, 4 "z" minus 2 , 6 , right parenthesis equals left parenthesis, negative 2.2 5 , 6 , right parenthesis Has graph. To audio trace, press ALT+T.4z−2,6
Label:
equals=
left parenthesis, negative 2.2 5 , 6 , right parenthesis−2.25,6