Final answer:
The question about the displayed value of DOLLAR4.2 is unclear. It might refer to formatting of currency in a business document. The provided context explains the effects of interest rates and inflation on currency demand and supply in the foreign exchange market.
Step-by-step explanation:
The student's question appears to be related to the formatting of financial figures in a business or economics context, with a particular focus on currency values and how they change with respect to different economic conditions. When discussing the displayed value of DOLLAR4.2, the question seems to indicate an issue with how numbers are being formatted or represented - perhaps in a spreadsheet or other financial documents.
Unfortunately, without additional context, the question about the displayed value of DOLLAR4.2 is unclear. Typically, in financial notation, an amount like $4.2 would represent four dollars and twenty cents if the stored value is larger than 4.
In the context provided, the discussion is about the foreign exchange market and how variables such as interest rates and inflation can affect the demand and supply of a currency, thus changing its exchange rate. A higher interest rate for a currency makes it more attractive to hold, shifting the demand curve to the right and supply curve to the left. This change leads to a new equilibrium with a stronger exchange rate, though the equilibrium quantity traded remains constant.
Additionally, high relative inflation within a country can decrease the purchasing power of its currency and consequently lower its demand in the foreign exchange markets, leading to a weaker exchange rate.