Answer:
The constant in the algebraic expression to represent the pattern below is 4.
Explanation:
Imortant Tip:
- An Arithmetic sequence has a constant difference 'd' which can be determined by computing the differences of all the adjacent terms
Given the pattern

computing the differences of all the adjacent terms

The difference between all the adjacent terms of the pattern is the same which is

Hence, the given pattern represents the Arithmetic sequence.
Therefore, the constant in the algebraic expression to represent the pattern below is 4.