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Question

Given the relation D={(6,4),(8,1),(x,7),(3,6)}. Which of the following values for x will make relation D a function ?
  1. 3
  2. 6
  3. 8
  4. 6
  5. Any value of x

A
3
B
Any value of x
C
6
D
6
E
8
Solution
Verified by Toppr

By the definition of function each element has unique image.
6,8,3 already has image in definition of D.
Therefore, only possibility left is 6.
Option B is correct.

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