Find a Formula for the Inverse of the Function Described $C$

question 259

Multiple Choice

Find a formula for the inverse of the function described below.
-A size 4 dress in Country $C$ is size 40 in Country D. A function that converts dress sizes in Country C to those in Country D is $f ( x ) = 2 ( x + 16 )$ .

• A) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { \mathrm { x } } { 2 } + 16\)
• B) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \mathrm { x } - 16\)
• C) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { \mathrm { x } } { 2 } - 16\)
• D) \(f ^ { - 1 } ( x ) = \frac { x - 16 } { 2 }\)

---

Definitions:

Price Supports

Government interventions to maintain the market price of a commodity or product at a certain minimum level to protect producers.

Competitive Markets

Markets in which multiple firms offer products or services and compete for customers, characterized by the freedom to enter or exit the market based on profitability and demand.

Parity Ratio

Parity ratio is a measure used in economics to compare the value of one aspect of the market or economy to another, often used in analyses of exchange rates and price levels.

Prices Paid

The actual amount of money exchanged for goods or services.