Perfectly elastic demand curves are irrelevant, since real world demand curves are never perfectly elastic

For U.S. consumers, the income elasticity of demand for fruit juice is 1.1. If the economy enters a recession next year and consumer income declines by 2.5%, what is the expected change in the quantity of fruit juice demanded next year?

+2.75% -27.5% +27.5% -2.75%

If two goods are complementary, the cross elasticity will be negative

Indicate whether the statement is true or false