Finding the Nth Term - Sequences

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Finding the Nth Term

Term:-   0    1     2      3      4      5  

                    3,    7,     11,   15,   19

Write an expression in terms of n for the above number sequence.

  • Find the number rule                                                                    +4
  • Find the zero (0) term for the above sequence                        -1
  • Write the nth term                                                                   4n - 1
  • Check it  4n - 1        4 x1(1st term)  -1  =  3    which is the 1st term

                                           Answer:-          4n - 1

         rule +4       zero term  -1

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Finding the Nth Term

Term:-    0      1      2       3      4      5  

                  30,    24,   18,    12,    6

Write an expression in terms of n for the above number sequence.

  • Find the number rule                                                                    -6
  • Find the zero (0) term for the above sequence                        36
  • Write the nth term                                                                   -6n + 36
  • Check it  -6n + 36        -6 x1(1st term)  +36  =  30    which is the 1st term

                                           Answer:-          -6n + 36

         rule -6          zero term  36

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