`拖动,描点!` left parenthesis, StartFraction, "n" Over 500 , EndFraction plus 0.2 5 , negative 0.5 , right parenthesis equals left parenthesis, 0.2 5 2 , negative 0.5 , right parenthesis Has graph. To audio trace, press ALT+T.n500+0.25,−0.5
Label:
equals=
left parenthesis, 0.2 5 2 , negative 0.5 , right parenthesis0.252,−0.5