Expression 2: "y" equals 1 half left parenthesis, ln left parenthesis, StartAbsoluteValue, "x" , EndAbsoluteValue , right parenthesis negative ln left parenthesis, "x" squared plus 1 , right parenthesis , right parenthesisy=12lnx−lnx2+1
2
Expression 3: "y" equals StartFraction, 1 minus "x" squared Over 2 "x" left parenthesis, "x" squared plus 1 , right parenthesis , EndFractiony=1−x22xx2+1
3
Expression 4: "y" equals StartFraction, "f" left parenthesis, "x" plus .0 1 , right parenthesis minus "f" left parenthesis, "x" , right parenthesis Over .0 1 , EndFractiony=fx+.01−fx.01