Question

What is the explicit formula for this sequence?

-7, -3, 1, 5, ...

A. an = 9+ (n − 1)(-4)
B. an-4+ (n-1)(-7)
C. an-7+ (n − 1)4
D. an-7+ (n-1)(-4)

Answer 1

It is C

Explanation:

It cannot be d bc - 7-4=-11 so rejected

Not b bc the first number is - 7

The same w a