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What does the term 'domain' refer to in the context of a function?

Practice Questions

Q1
What does the term 'domain' refer to in the context of a function?
  1. The set of all possible output values.
  2. The set of all possible input values.
  3. The maximum value of the function.
  4. The minimum value of the function.

Questions & Step-by-Step Solutions

What does the term 'domain' refer to in the context of a function?
  • Step 1: Understand that a function takes an input and gives an output.
  • Step 2: The input values are usually represented by 'x'.
  • Step 3: The domain is all the possible 'x' values that you can use in the function.
  • Step 4: If you try to use an 'x' value that the function can't handle, it's not in the domain.
  • Step 5: For example, in the function f(x) = 1/x, you cannot use x = 0 because it would make the function undefined.
  • Step 6: So, the domain of this function is all real numbers except for 0.
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