Question

price
price floors
quantity
demand
supply
the line at pf represents the
the line at pe represents the
the line between points a and
price floor
price ceiling
equilibrium price

Explanation:

Step1: Identify equilibrium

The intersection of demand and supply (at $P_E$) gives equilibrium.

Step2: Identify price - floor

$P_F$ is above equilibrium, a price - floor.

Step3: Identify price - ceiling

The line between A and B restricts price below equilibrium, a price - ceiling.

Answer:

The line at $P_E$ represents the equilibrium price. The line at $P_F$ represents the price - floor. The line between points A and B represents the price ceiling.