Maths-
General
Easy

Question

If f colon R not stretchy rightwards arrow R text  defined by  end text f left parenthesis x right parenthesis equals x squared minus 2 x minus 3 text  then  end text f text  is  end text

  1. a function
  2. one one
  3. onto
  4. one one onto

The correct answer is: a function

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