1. What is the difference between a “change in demand” and a change in “quantity demanded.”

2. What is the difference between a “change in supply” and a change in “quantity supplied.”

3. Holding demand constant, what is the only thing that can cause a change in quantity demanded?  What are the things that cause a change in demand?

4. How do changes in income affect the demand for a good?

5. How do substitute and complementary goods affect the demand for a good?