DOMAIN AND RANGE OF A FUNCTION

How will you define a function?

• A relation in which each element of the domain is paired with exactly one element of the range.

• A relation that maps every range value to exactly one domain value.

• It is a set of ordered pairs that correspond to a relation

• A set of positive real numbers that implies the second element

Which of the following will define a function?

• {(-1, 2), (0, 3), (0, 4), (1, 5)}

• {(-3, 2), (-2, 3), (-1, 4), (-2, 5)}

• {(1, 3), (2, 4), (3, 5), (4, 6)}

• {(0, 1), (1, 2), (2, 3), (1, 4)}

Given the set of ordered pairs, which of the following is NOT a function?

• (1,-5), (3,1), (-5,4), (4,-2)}

• {(1,-5), (-1,6), (1,5), (6,-3)}

• {(2,7), (3,7), (4,7), (5,8)}

• {(3,-2), (5,-6), (7,7), (8,8)

What is the range of the set of ordered pairs: (2, 11), (9, -3), (7, 21), (-8, 6)?

• {2, 9, 7, -8}

• {11, -3, 21, 6}

• Set of all real number

• Set of all positive integers

It is used to determine whether a graph represents a function.

• Horizontal line test

• Vertical line test

• Domain line test

• Range line test

The domain of the relation {(1, 2), (3, 4), (5, 6), (7, 8)}? is {1, 3, 5, 7}

• TRUE

• FALSE

The ordered pair {(1, 0), (2, 0), (3, 0)} is an example of a function? ->

• TRUE

• FALSE

The set of all second elements in the ordered pair is the range

• TRUE

• FALSE

The set of ordered pairs is called FUNCTION

• TRUE

• FALSE

All function s are relations but not all relations are function.

• TRUE

• FALSE