Three terms of an arithmetic sequence are shown below. Which recursive formula defines the sequence?: f(1) = 6, f(4) = 12, f(7)

Question

2 years ago

12

= 18
a. f (n + 1) = f(n) + 6

b. f (n + 1) = 2f(n)

c. f (n + 1) = f(n) + 2

d. f (n + 1) = 1.5f(n)

2 answers:

In-s [12.5K] · Answer 1 · 2022-05-02T03:09:01+03:00

8 0

Answer: The answer is c.) f (n + 1) = f(n) +2

Gala2k [10] · Answer 2 · 2022-05-02T01:18:43+03:00

Gala2k [10]2 years ago

6 0

A = 6
tn = a + (n - 1)d
t4 = 6 + 3d = 12
3d = 12 - 6 = 6
d = 6/3 = 2
f(n + 1) = f(n) + 2