Relations and Functions Quiz

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Questions and Answers

Which of the following statements about relations and functions is true?

  • Functions can only be defined between numbers.
  • A function can have multiple outputs for the same input.
  • Relations and functions are the same thing.
  • A relation can have multiple outputs for the same input. (correct)

What is the difference between a relation and a function?

  • A relation can have multiple outputs for the same input, while a function has only one output for each input. (correct)
  • A relation is a set of ordered pairs, while a function is a set of inputs and outputs.
  • A relation can have multiple inputs for the same output, while a function has only one input for each output.
  • A relation is a function, but a function is not necessarily a relation.

Which of the following is an example of a function?

  • The set of all even numbers (correct)
  • The set of all real numbers
  • The set of all prime numbers
  • The set of all integers

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