Expression 3: "y" equals 2 plus "g" left parenthesis, 2 , 2 , right parenthesis left parenthesis, "x" minus 2 , right parenthesisy=2+g2,2x−2
3
Expression 4: "y" equals negative 2 plus "g" left parenthesis, 2 , negative 2 , right parenthesis left parenthesis, "x" minus 2 , right parenthesisy=−2+g2,−2x−2