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Identifying functions from relations ( sending additional photos for the rest of the questions

Identifying functions from relations ( sending additional photos for the rest of the-example-1
User Mvlupan
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From the definition of the function, each element in domain set has exactly one image in the rage set.

In relation 1, the elemnts e and x in domain set has more than one image in the range set. So, it is not a function

In relation 2, the element c in the domain set has mor ethan one image in the range set. So, it is not a function

In relation 3, every element in domain set has a unique image in range set.

So, it is a function.

In relation 4, the elemnt 3 in domain set has more than one image in range set. So, it is not a function

User Ron Kalian
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