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Mathematics
Mathematics
Problem
The relation
P
=
{
(
2
,
5
)
,
(
3
,
7
)
,
(
2
,
8
)
,
(
4
,
9
)
}
P=\{(2,5),(3,7),(2,8),(4,9)\}
P
=
{(
2
,
5
)
,
(
3
,
7
)
,
(
2
,
8
)
,
(
4
,
9
)}
is defined from the set
{
2
,
3
,
4
}
\{2,3,4\}
{
2
,
3
,
4
}
to
{
5
,
7
,
8
,
9
}
\{5,7,8,9\}
{
5
,
7
,
8
,
9
}
. How many ordered pairs must be removed from
P
P
P
so that the resulting set is a function? a)
2
2
2
b)
1
1
1
c)
0
0
0
d)
3
3
3
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