Question

The first four terms of a sequence are shown below.

7, 4, 1, -2

Which of the following functions best defines this sequence?

f(1) = 7, f(n + 1) = f(n) + 3; for n ≥ 1

f(1) = 7, f(n + 1) = f(n) - 3; for n ≥ 1

f(1) = 7, f(n + 1) = f(n) - 4; for n ≥ 1

f(1) = 7, f(n + 1) = f(n) + 4; for n ≥ 1

Answer 1

is the next term 3 more, 3 less, 4 more, or 4 less ... than the one before it?

Answer 2

Could you rephrase that?

Answer 3

im sure I could ...

Answer 4

7+n = 4, solve for n

Answer 5

-3

Answer 6

then id pick the one that opts for a -3

Answer 7

So, I'd choose f(1) = 7, f(n + 1) = f(n) - 3; for n ≥ 1 ?

Answer 8

Thank you, it was correct.