Design a portfolio using only puts where the profit line has slope 0 from price $0 to $80, slope −1 from price $80 to $90, slope 0 from price $90 to $110, slope 2 from price $110 to $120, and slope 0...

Design a portfolio using
only puts
 where the profit line has slope 0 from price $0 to $80, slope −1 from price $80 to $90, slope 0 from price $90 to $110, slope 2 from price $110 to $120, and slope 0 from price $120 to infinity.

b)Draw the profit curve forPort=P₇₀−2P₈₀+P₉₀+2C₁₁₀−3C₁₂₀+C₁₃₀. Shift slightly for cost.