Chapter 1 What Economics is About&: Appendix AiPre-Class of In-Class Activities Packet Name I D. Number: Section: Date: Part 2B. Matching Appendix "A"Key Terms & Concepts: Match the Key termin Column "A" with the definitions in Column "B" by writing thback letter of your choice from Column "B'in the space provided under column "A" and match the definitions in column "B" witthe meanings or examples or real world applications orfacts or formulas in column "C" by writing the lower letter case of your choice the space provided under column "B"_ Column "A" Column "B" Column "C" 1. Directly Related A The value of the entire output produced annually within a country's bordersa. About $ 20 trillicfor the U.S. in 2019 2. Inversely Related EThe ratio of the change in the variable on the vertical axis to the change in b. Measures rate of change AY/AX the variable on the horizontal axis. 3. Independent C.Two variables are independent if, as one changes, the other remains constantc. Negatively related, if xt - y! 4. Slope D. Two variables are inversely related if they change in opposite ways. d. Positively relatedif xt - yt 5. Gross Domestic E. Two variables are directly related if they change in the same way e. No predictable relationship exist Product (GDP) between the two economic variables