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Question

x y
1 3
2 4
3 6
4 5
5 7
The above information signifies a

A
Relation not a function
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B
Function but not a relation
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C
Both Relation and a function
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D
Neither function nor relation
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Solution

The correct option is C Both Relation and a function
x y
1 3
2 4
3 6
4 5
5 7
The above information signifies that

For x=1,y=3
for x=2,y=4
For x=3,y=6
For x=4,y=5
and for x=5,y=7

For every value of x there is only one value in y that is associated with it.

For a relation to be a function, each and every value in x must correspond to a different value in y.
The given information is a relation as well as the function.

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