Question

The following function defines a recursive sequence:

f(0) = -2

f(1) = 8

f(n) = -4•f(n -1) - 3•f(n - 2); for n > 1

Which of the following sequences is defined by this recursive function?

-2, 8, -26, -80, …
-2, 8, -26, 80, …
-2, 12, -44, 180, …
-2, -12, -44, -180, …

Answer 1

@aum

Answer 2

@sleepyjess

Answer 3

We can automatically rule out 2 since the sequence goes negative, positive, negative, positive

Answer 4

so A and D aren't it

Answer 5

i was thinking B

Answer 6

@sleepyjess

Answer 7

gimme just a min to work it out :)

Answer 8

O_O

Answer 9

what?

Answer 10

I am not getting the last answer

Answer 11

huh? i think it's b

Answer 12

I'd agree with that, it is the only one matching the formula

Answer 13

and horizontal lines always have a slope of 0?

Answer 14

like a completely horizontal line

Answer 15

@sleepyjess

Answer 16

yes