Mathematics
Grade10
Easy

Question

If the first difference of the data is constant, then the value of d is ________.

  1. 9    
  2. 11    
  3. - 4    
  4. 0    

The correct answer is: - 4


    The first difference is the difference of the consecutive y - values.
    So, 2 – 8 = - 10 - d
    d = - 4

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