Asequence is defined recursively using the formula f(n + 1) = f(n) – 5 . which sequence could be generated using this formula?

1, –5, 25, –125,
2, 10, 50, 250,
3, –2, –7, –12,
4, 9, 14, 19,

Each term will be 5 less than the previous term since the formula says to subtract 5.

3, –2, –7, –12, ... is the correct sequence.

f(1) would be 3
f(2) = f(1 + 1) = f(1) - 5 = 3 - 5 = -2
f(3) = f(2 + 1) = f(2) - 5 = -2 - 5 = -7
f(4) = f(3 + 1) = f(3) - 5 = -7 - 5 = -12
and so on

Hello,

Answer C

1) f(n+1)=-5*f(n)

2)f(n+1)=5*f(n)

3)  f(n+1)=f(n)-5

4) f(n+1)=f(n)+5

The answer would be a i think