Answer:
In function notation [f(x)] for sequences, x is the index. Therefore, f(2) represents the second term of the sequence. The notation shows that the second term of the sequence has a value of 4.
In a function, each input has a unique output. Similarly, in a sequence, the index is an independent variable that does not repeat or skip any term in the sequence. So, every number of the index is unique.
Step-by-step explanation:
Plato Answer
