:Perfectly elastic would be a horizontal line and perfectly inelastic would be a vertical line. (Caroline)
4. '''''Why''''' is the name "necessity" given to a good that has a price elasticity of less than one, and the name "luxury" given to a good that has a price elasticity of more than one?
4. '''''Why''''' is the name "necessity" given to a good that has a price elasticity of less than one, and the name "luxury" given to a good that has a price elasticity of more than one?