Mathematics
Grade10
Easy

Question

Find the domain of the function f left parenthesis x right parenthesis equals x squared minus 3.

  1. X space greater or equal than space 3
  2. X space less or equal than space 3
  3. X space greater or equal than space 0
  4. All real numbers

The correct answer is: All real numbers


    To find the domain of the function.
    Domain is the set of all values for which the function is defined.
    The domain of a quadratic function is all real numbers.
    The quantity x2 - 3 can be calculated for all real numbers x.

    Hence the domain is the set of all real numbers.

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