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When it doesn't fulfill the requirements of a function. A function must have EXACTLY ONE value of one of the variables (the "dependent variable") for every value of the other variable or variables (the "independent variable").

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8y ago
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8y ago

The relation is a function if, for every element in the domain there is exactly one element in the range and if for every element in the range there is at least one element in the domain.

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Q: When can we say that a relation is not a function?
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Related questions

Is the relation a function?

Not every relation is a function. But every function is a relation. Function is just a part of relation.


Can you have a function that is not a relation?

No, a function must be a relation although a relation need not be a functions.


Which of these data sets represents a function?

Does the graph above show a relation, a function, both a relation and a function, or neither a relation nor a function?


Is a function always a relation and a relation always a function?

yes.


When does a relation be a function?

A function is a relation whose mapping is a bijection.


Is all relation a function?

Not every relation is a function. A function is type of relation in which every element of its domain maps to only one element in the range. However, every function is a relation.


When can you say that the graph is function or mere relation?

If a vertical line intersects the graph at more than one point then it is not a function.


A relation is a special type of function?

No. A relation is not a special type of function.


How do you determine if a relation is a function?

A relation is a function if every input has a distinct output.


What is the difference between function and a relation?

Good question. A relation is simply that; any x-value to create any y-value. A function, however, cannot be defined for multiple values of x. In other words, for a relation to be a function, it must have singular values for all x within its domain.


How do you know if a relation is a function?

relation and function are number that combine with number and neqative number to .


Is it true or false that a relation is a special type of function?

No. A relation is not a special type of function.