Recursive Sequence

                     Lesson 1

                                                                                                                                                                          

                                                            Problem:   Write the recursive formula for the sequence

4, 8, 12

                                                            

                                                            Solution     Recursive formula:

Step 1:    a1 = 4                                                                                                                                                                                                        

                     

                                                            Solution    an = an-1 + 4

                                                            Step 2:                                                     

                                                                                         

                                                            Solution     Answer: Recursive formula: a1 = 4;

Step 3: an = an-1 + 4                                                            

Complete                                                                   

                                                                                                                               

                                                             Try two practice problems:  

 

                                                                                Solve the following:     

 

A.

Write a recursive formula for the sequence

 

2,4,6,8 ...

B.

Write a recursive formula for the sequence

 

2,10,18,26 ...

 

 

 

 

 

 

        

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