Question

Jeremy can determine the total number of miles walked at a constant speed by using the formula an=an-1+3. If a1=2, what are the first three terms of the sequence?

A. 1, 5, 8
B. 2, 6, 18
C. 2.-1, -4
D. 2, 4, 6

Answer 1

I believe that the answer to this question is not found in the choices. The first term a1 = 2. The common difference is 3.
Since you are already given the first term, you simply just add 3 to find the second term, and add 3 again to find the third term of the sequence.

So the answer must be 2, 5, 8.