Mathematics
Grade10
Easy

Question

text  A businessman's monthly profit, in thousands of dollars, can be modelled by the  function  end text g left parenthesis x right parenthesis equals 2 x squared minus 5 x plus 3 text . Select the true statement.   end text

  1. text  Domain:  end text left parenthesis negative infinity comma infinity right parenthesis
  2. text  Range:  end text left parenthesis negative infinity comma infinity right parenthesis
  3. text  The function has an axis of symmetry at  end text x equals 5 over 2
  4. text  As  end text x rightwards arrow infinity comma y rightwards arrow negative infinity

hintHint:

Here the domain of the function is set for all real numbers.

The correct answer is: text  Domain:  end text left parenthesis negative infinity comma infinity right parenthesis


    The domain of all quadratic functions is the set of all real numbers.
    Here the domain of the function is set for all real numbers.
    text  So, domain:  end text left parenthesis negative infinity comma infinity right parenthesis

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