Identify the Sequence -8 , -40 , -200 , -1000

$- 8$ , $- 40$ , $- 200$ , $- 1000$

Step 1

This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by $5$ gives the next term. In other words, $a_{n} = a_{1} r^{n - 1}$ .

Geometric Sequence: $r = 5$

Step 2

This is the form of a geometric sequence.

$a_{n} = a_{1} r^{n - 1}$

Step 3

Substitute in the values of $a_{1} = - 8$ and $r = 5$ .

$a_{n} = - 8 \cdot 5^{n - 1}$

Identify the Sequence -8 , -40 , -200 , -1000

Related Questions

Support LCMGCF.com by disabling your adblocker.