Question

The first four terms of a sequence are shown below:

6, 2, -2, -6

Which of the following functions best defines this sequence?

f(1) = 6, f(n + 1) = f(n) + 4; for n ≥ 1

f(1) = 6, f(n + 1) = f(n) - 2; for n ≥ 1

f(1) = 6, f(n + 1) = f(n) - 4; for n ≥ 1

f(1) = 6, f(n + 1) = f(n) + 2; for n ≥ 1

Answer 1

Check the difference between a term and its previous term. If the differences are all the same, then you can choose from one of the given functions with the difference you found.

Answer 2

lol i feel dumb.... so its c?

Answer 3

Yep, you got it! Well done!

Answer 4

yup c