1. Calculate the price elasticity of demand from point D to point E.
2. Classify the elasticity for point D to point E as elastic, inelastic, or unitary.
3. Provide an explanation for the elasticity for point D to point E.

Table 1: Demand for athletic shoes Points Price Quantity A $10 1,200 $20 2,000 $30 3,500 $40 1,800 $50 1,700 L - I A n MOOD $60 1,500 $70 2,200 $80 1,600 $90 1,300 $100 1,900 Table 2: Supply for sunglasses Points Price Quantity K $4 1,000 $8 1, 100 $16 1,400 $32 1,600 DOUZ3 $64 3,200 $128 1,000 $256 1,400