Question

The first four terms of a sequence are shown below.
8, 5, 2, -1

Which of the following functions best defines this sequence?

Answer 1

please help!

Answer 2

you said ` which of the following `, so can you please post the options ?

Answer 3

1) f(1) = 8, f(n + 1) = f(n) + 3; for n ≥ 1
2) f(1) = 8, f(n + 1) = f(n) - 5; for n ≥ 1
3) f(1) = 8, f(n + 1) = f(n) + 5; for n ≥ 1
4) f(1) = 8, f(n + 1) = f(n) - 3; for n ≥ 1

Answer 4

The recursive formula for this sequence is \(\Large\color{black}{ f_{n+1}=f_{n}-3 }\).
In other words, to get to the next term, you subtract 3 from the term before it.

And the first term is 8.

So the answer is ?

Answer 5

If you need more help, tell me....

Answer 6

I don't understand