For Any Relation R,if,for Every Valid Instance of A,that Value

question 125

Multiple Choice

For any relation R,if,for every valid instance of A,that value of A uniquely determines the value of B:

• A)then a primary dependency exists in the relation
• B)then A is said to be functionally dependent on B
• C)then B is said to be functionally dependent on A
• D)then A and B are candidate keys for the relation

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Definitions:

Income Effect

The change in consumption resulting from a change in real income.

Total Utility

The overall satisfaction or benefit a consumer receives from consuming a certain quantity of a good or service.

Indifference Curve

A graph that represents different combinations of two goods or services among which a consumer is indifferent, meaning they have no preference for one combination over another, all providing the same level of utility.

Budget Line

A graphic representation of all possible combinations of two goods that can be purchased at given prices and a given income.