Write the first ten terms of a sequence whose first term is -10 and whose common difference is -2.

Question

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Answer 1

The first term is    -10.
The common difference is -2, so the second term is     -10-2 = -12
The third term is:                                                     -14
The fourth term is:                                                  -16
. . .   (ellipsis means some information omitted)

Note:  Add the common difference to the current term in order to get the next term (or subtract the last term from the current term to get the common difference).

Soon, you will learn a formula for finding the nth tem given the first term and the common difference in a arithmetic sequence.

Answer 2

-10 ,  -8  ,  -6 ,  -4  ,  -2 ,  0  ,  2 ,  4 ,  6 , 8

 

 

Note that the difference between the succeeding consecutive integers is -2.

 

-10 - (-8) = -2

 

-8 - (-6) = - 2 

 

-6 - (-4) = -2

 

-4 - (-2) = -2

 

 

and so on.