The common difference is the difference between any two consecutive terms in the sequence. In this case, the difference between a4 and a3 is 2. Therefore, the common difference is 2.
The initial term is the first term in the sequence. In this case, a1 is given as 5. Therefore, the initial term is 5.
The formula is solving for the nth term in the sequence.
In place of the n-1, we should have the previous term in the sequence. Therefore, n-1 refers to the term that comes before the term we are trying to find.
Given the Recursive Formula:
a1 = 5
a4 = an−1 +2
What is the common difference?
What is the initial term?
What term is this formula solving for?
What should be in place of the n-1?
A. 5
B. 2
C. 3
D. 4
1 answer