The relation is defined from the set to

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

The relation

P=\{(2,5),(3,7),(2,8),(4,9)\}

is defined from the set

\{2,3,4\}

\{5,7,8,9\}

. How many ordered pairs must be removed from

P

so that the resulting set is a function? (a)

2

(b)

1

(c)

0

(d)

3