Chapt 10 (Option Strategies) # 4, (answer in back of book) 10,12,19  
(For an interesting problem, read #11.....  actually showing that it is true requires some algebra).

Hints:
10.  A bull spread with puts requires writing the put with the low exercise prices, and buying the put with the high exercise prices.
As you trace the pay-offs graphically, start at the far right side of your graph (where neither put is exercised) and move to your left.  

12.  A straddle requires buying the put option and buying the call option.  

19.  To construct payoffs from a butterfly spread with put options, again trace your payoff diagram starting at the far right (where none of the puts is exercised) and move to your left.  You will have to go long the put with the high exercise price, write two puts with the middle exercise price and buy one put with the low exercise price.


OTIS:  Set up an option strategy in OTIS, such as a bull call spread or a butterfly spread.  Detail the trade in your journal, describing and graphing the expected outcomes.