A Size 8 Dress in Country C Is $f ^ { - 1 } ( x ) = \frac { x - 16 } { 2 }$

question 175

Multiple Choice

A size 8 dress in Country C is size 48 in Country D. A function that converts dress sizes in Country C to those in Country D is f(x) =2( x +16) . Find a formula for the inverse of this function.

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

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Definitions:

Demand Rises

An increase in the quantity of a good or service that consumers are willing and able to purchase at a given price.

Income Falls

A scenario where an individual or household experiences a reduction in their earnings from wages, investments, or other sources.

Equilibrium Price

The selling price where the amount of products supplied equals the amount of products demanded.

Equilibrium Quantity

The amount of goods or services supplied is exactly equal to the amount of goods or services demanded at a given price.