If a --> B and B --> a Are Existing

question 90

Multiple Choice

If A --> B and B --> A are existing functional dependencies,which of the following are NOT equivalent functional dependencies?

• A)A --> B and B --> A
• B)A --> B,X and B --> A,X
• C)X --> A and A --> B
• D)X,A --> B,X and X,B --> A,X

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Definitions:

Common Stock

A type of equity security that represents ownership in a corporation, granting holders voting rights and a share in the company’s profits through dividends.

Share Earnings

Often referred to as earnings per share (EPS), it's the portion of a company's profit allocated to each outstanding share of common stock.

Retained Earnings

The portion of a company's profits that is kept or retained and not distributed to shareholders as dividends.

Accumulated Profit

The total amount of net income retained in a company over its entire history, not distributed as dividends.