Relation and Function

Which of the ff. is a function ?

• graph of a circle

• (1 , 2),(3 , 4), (5 , 6)

• 

It is used to determine if the graph of the relation is a function or not.

• horizontal line test

• vertical line test

Which of the following is a function?

• one - to - one relation

• one - to - many relation

• many - to - many relation

All functions are relations but not all relations are functions.

• FALSE

• TRUE

• SOMETIMES TRUE

• NEVER TRUE

Which of the following graph is a function ?

• 
• 
• 
• 

Which of the following is not a function ?

• one - to one relation

• one - to many relation

• many - to - one relation

It is a relation in which no two ordered pairs have the same first component.

• dependent

• independent

• function

• relation

It is the set of all first component in each each element of the set in relation.

• dependent

• independent

• range

• domain

It is the set of all second component in each element of the set in the relation.

• dependent

• independent

• range

• domain

In the two given variable, time and salary, which one is the independent variable ?

• time

• salary