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A relation is a mapping or pairing of input values with output values.

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Q: What is a mapping or pairing of input values with output values?
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What is the output mapping x 3x use the input 5?

15


What is an expression that describes the relationshipbetween each input and output?

A mapping. It need not be a function.


What is an input or output relation that has exactly one output for each input?

A one-to-one function, a.k.a. an injective function.


What the set of the x values also known as domain?

A function, f, is usually a mapping from a set of input values. This set, whose elements are often denoted by x, is called the domain.A function, f, is usually a mapping from a set of input values. This set, whose elements are often denoted by x, is called the domain.A function, f, is usually a mapping from a set of input values. This set, whose elements are often denoted by x, is called the domain.A function, f, is usually a mapping from a set of input values. This set, whose elements are often denoted by x, is called the domain.


What is the mapping between a set of input and a set of output?

It is simply a mapping. It could be a function but there are several conditions that need to be met before the mapping can become a function and there is no basis for assuming that those conditions are met.


What is a relation with the property that for each input there is exactly one output?

That's a proper function, a conformal mapping, etc.


In a mapping how many ordered pairs are there for every arrow?

1


If a given input value yields four output values that relationship can be best described as a relation true or false?

This is true. If a given input value yields four output values that relationship can be best described as a relation.


What is a ratio that compares the difference between two output values to the difference between the corresponding input values?

something


How do you describe the domain and range of a function?

The domain is the set of values of the input while the range is the set of output values.


In a function can an input have more than one outputs?

No. If an input in a function had more than one output, that would be a mapping, but not a function.


What is A set of input and output values such that each input has one or more outputs?

It is a relationship from one set to another, which is not a function.