one value for "Y" for every "X" is related by a function... it cannot be a function if it has more than one Y value for an X value
Function.
The domain of the inverse of a relation is the range of the relation. Similarly, the range of the inverse of a relation is the domain of the relation.
A relation is a mapping between two sets, a domain and a range. A function is a relationship which allocates, to each element of the domain, exactly one element of the range although several elements of the domain may be mapped to the same element in the range.
It is an injective relation.
Function
one value for "Y" for every "X" is related by a function... it cannot be a function if it has more than one Y value for an X value
one value for "Y" for every "X" is related by a function... it cannot be a function if it has more than one Y value for an X value
Function
It is an invertible function.
It is the set on which the relation is defined to the set which is known as the range.
A relation where each element of the domain is paired with only one element of the range is a one to one function. A one to one function may also be an onto function if all elements of the range are paired.
Describe how to find the domain and range of a relation given by a set of ordered pairs.