Decide Whether the Relation Is a Function $$\{ ( - 5 , - 2 ) , ( - 3 , - 9 ) , ( 4 , - 3 ) , ( 4 , - 4 ) \}$$

question 59

Multiple Choice

Decide whether the relation is a function.
- $$\{ ( - 5 , - 2 ) , ( - 3 , - 9 ) , ( 4 , - 3 ) , ( 4 , - 4 ) \}$$

• A) function
• B) not a function

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Definitions:

Validation Rule

A set of criteria that data must meet before being accepted into a database field, ensuring data integrity and accuracy.

Multivalued Field

A type of database field that can hold multiple values within a single record, contrasting with conventional fields that hold a single value.

Allow Multiple Values

A database feature enabling a single field to hold more than one value per record.

Table Design View

A feature in database management systems that allows users to visually create, modify, and organize the structure of a database table.