Expression 4: polygon left parenthesis, left parenthesis, "t" plus 1 half , "f" left parenthesis, "t" , right parenthesis plus StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , right parenthesis , left parenthesis, "t" plus 5 halves , "f" left parenthesis, "t" , right parenthesis plus StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , right parenthesis , left parenthesis, "t" plus 5 halves , "f" left parenthesis, "t" , right parenthesis plus 2 plus StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , right parenthesis , left parenthesis, "t" plus 1 half , "f" left parenthesis, "t" , right parenthesis plus 2 plus StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , right parenthesis , right parenthesispolygont+12,ft+32,t+52,ft+32,t+52,ft+2+32,t+12,ft+2+32
4
Expression 5: polygon left parenthesis, left parenthesis, "t" , "f" left parenthesis, "t" , right parenthesis , right parenthesis , left parenthesis, "t" plus 1 half , "f" left parenthesis, "t" , right parenthesis plus StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , right parenthesis , left parenthesis, "t" plus 5 halves , "f" left parenthesis, "t" , right parenthesis plus StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , right parenthesis , left parenthesis, "t" plus 2 , "f" left parenthesis, "t" , right parenthesis , right parenthesis , right parenthesispolygont,ft,t+12,ft+32,t+52,ft+32,t+2,ft
5
Expression 6: polygon left parenthesis, left parenthesis, "t" , "f" left parenthesis, "t" , right parenthesis , right parenthesis , left parenthesis, "t" plus 1 half , "f" left parenthesis, "t" , right parenthesis plus StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , right parenthesis , left parenthesis, "t" plus 1 half , "f" left parenthesis, "t" , right parenthesis plus 2 plus StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , right parenthesis , left parenthesis, "t" , "f" left parenthesis, "t" , right parenthesis plus 2 , right parenthesis , right parenthesispolygont,ft,t+12,ft+32,t+12,ft+2+32,t,ft+2
6
Expression 7: "f" left parenthesis, "p" , right parenthesis equals negative 4.9 "p" squaredfp=−4.9p2