Sagot :
Answer:
Here are some examples of one-to-one relationships in the home:
One family lives in one house, and the house contains one family.
One person has one passport, and the passport can only be used by one person.
One person has one ID number, and the ID number is unique to one person.
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Answer:
A function f is 1 -to- 1 if no two elements in the domain of f correspond to the same element in the range of f . In other words, each x in the domain has exactly one image in the range. And, no y in the range is the image of more than one x in the domain.