Graph the of the number of riders from to .

The graph appears to be divergent.

Since as increases, the sequence does not approach a finite number.

Graph of the function is decreases for some time and not continuously decreases on its entire domain.

(b)

Using the table, total number of riders from to is

.

Explicit formula for the sequence is .

Find the eighth partial sum of the sequence.

.

Eighth partial sum of the sequence is .

 .

Thus, the both results are approximately equal.

(c) Find .

represents the number of riders in , riders.

(a) Graph:

Divergent.

(b) .

(c) .

represents the number of riders in , riders.