Expression 3: "y" Subscript, 1 , Baseline tilde "a" left parenthesis, "x" Subscript, 1 , Baseline minus "h" , right parenthesis squared plus "b"y1~ax1−h2+b
3
Expression 4: "y" equals "a" plus "b" natural log left parenthesis, "x" , right parenthesisy=a+blnx