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Mathematics

Grade-8

Easy

Question

Is the relation a function? Why.

Yes, because the x-value 11 has two y-values paired with it.
Yes, because each x-value has only one y-value paired with it.
No, because the x-value 11 has two y-values paired with it.
No, because each x-value has only one y-value paired with it.

The correct answer is: No, because the x-value 11 has two y-values paired with it.

No, because the x-value 11 has two y-values paired with it.
because : according to the definition of the function
A function is a relation which describes that there should be only one output (domain) for each input (range)
here input 11 has to output 5 and 8, that's why the relation is not a function

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