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

question 512

Multiple Choice

Find a formula for the inverse of the function described below.
-A size 4 dress in Country $C$ is size 42 in Country D. A function that converts dress sizes in Country $C$ to those in Country $D$ is $f ( x ) = x + 38$ .

• A) \(f ^ { - 1 } ( x ) = x - 38\)
• B) \(f ^ { - 1 } ( x ) = \frac { x } { - 38 }\)
• C) \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \mathrm { x } + 38\)
• D) \(f ^ { - 1 } ( x ) = \frac { x } { 38 }\)

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Definitions:

Concrete

A building material made from a mixture of cement, aggregate (such as sand or gravel), and water, which hardens over time.

Specific Heat

Specific heat is the amount of heat per unit mass required to raise the temperature of a substance by one degree Celsius, reflecting the substance's ability to absorb heat.

Building Fire

A destructive conflagration occurring in structures such as homes, offices, and public buildings, often leading to damage or destruction of property and potential loss of life.

Intermolecular Forces

Forces of attraction or repulsion which act between neighboring particles (atoms, molecules, or ions).