Write an Equation of the Inverse for the One-To-One Function $$z ( x ) = \frac { 1 } { 5 } x - 2$$

question 10

Multiple Choice

Write an equation of the inverse for the one-to-one function as defined. $$z ( x ) = \frac { 1 } { 5 } x - 2$$

• A) \(z ^ { - 1 } ( x ) = x - 10\)
• B) \(z ^ { - 1 } ( x ) = 5 ( x + 2 )\)
• C) \(z ^ { - 1 } ( x ) = 5 x + 2\)
• D) \(z ^ { - 1 } ( x ) = 5 x - \frac { 1 } { 2 }\)

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Definitions:

Trade-In Allowance

The value that a dealer offers to a customer for the customer's used item (e.g., car) when purchasing a new item.

Accumulated Depreciation

The total depreciation for a fixed asset that has been charged to expense since the asset was acquired and made available for use.

Commercial Substance

A concept in accounting that indicates a transaction significantly alters the economic position or cash flows of an entity.

Straight-Line Depreciation

A strategy for dividing the cost of a substantial asset through its operational life in even yearly portions.