which of the following is relation is/Are functions /s?.. a). The rules which assign to each person the name of his brother.. b).the rules which assign to each person a surname. c). The rules which assign to each person the name of teachers you have. d). The rule which assigns a pen and colour of its ink.
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Answer:
option b.
Step-by-step explanation:
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The relation which is a function (b) the rules which assign to each person a surname.
Step-by-step explanation:
- We know, A Function is a relation from a set of inputs (domain) to a set of possible outputs (range) where, each input can have only one output.
- Here the set of people can be considered as the input (domain) and the set of their surnames can be considered as the output (range). It should be noted that:
- It is obvious that everyone has a surname (generally all cases), therefore the first condition to be a function is fulfilled wherein each input should have an output.
- Also, a person can have only one surname (generally). Therefore, the second condition of being a function wherein each input can have only one output is also fulfilled.
Hence, The relation which is a function (b) the rules which assign to each person a surname.
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