Expression 1: "f" left parenthesis, "x" , right parenthesis equals StartFraction, 1 Over "x" , EndFraction Has graph. To audio trace, press ALT+T.fx=1x
1
Expression 2: "h" left parenthesis, "x" , right parenthesis equals negative StartFraction, 1 Over "x" , EndFraction Has graph. To audio trace, press ALT+T.hx=−1x