Question

I WILL GIVE YOU THE BRAINLEST+100 POINTS!!
Which of the following represents the general equation for the geometric sequence?


-1, -2, -4, ...

Answer 1

$\huge{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

Which of the following represents the general equation for the geometric sequence?

-1,-2,-4, ...

Formula

$\Large{\boxed{\sf{}a_{n}=a_{1}r^{n-1}}}$

When finding the ratio we will divide $\: \sf{}a_{2}\: and \: a_{1}\:( -2)\div(-1)$

Given

$\Large{\sf{}a_{1}=-1}$

$\Large{\sf{}r=2}$

Solution

$\Large{\sf{}an=(-1)(2)^{n-1}}$

Answer 2

Answer:

$\red { \underline{ \boxed{ \sf { \bigstar \: Solution}}}}$

Which of the following represents the general equation for the geometric sequence?

-1,-2,-4, ...

Formula

$\Large{\boxed{\sf{}a_{n}=a_{1}r^{n-1}}}$

When finding the ratio we will divide \: $\sf{}a_{2}\: and \: a_{1}\:( -2)\div(-1)$

Given

$\Large{\sf{}a_{1}$

$\Large{\sf{}r=2}$

Solution

$\Large{\sf{}an=(-1)(2)^{n-1}}an=(−1)(2)$