Question

he first four terms of a sequence are shown below:

8, 5, 2, −1

Which of the following functions best defines this sequence? (5 points)


A. f(1) = 8, f(n + 1) = f(n) + 3; for n ≥ 1
B. f(1) = 8, f(n + 1) = f(n) − 5; for n ≥ 1
C. f(1) = 8, f(n + 1) = f(n) + 5; for n ≥ 1
D. f(1) = 8, f(n + 1) = f(n) − 3; for n ≥ 1

Answer 1

there are 2 types of series one with a common difference as you go from one term to the next and one with a common ratio
one term to the other denoted as (n) then (n + 1)

Answer 2

i honestly have no clue how to do this

Answer 3

the first term is 8 the second term is 5
what do you need to do to 8 to get to 5?

Answer 4

SUBTRACT 3

Answer 5

because this is a series you have to do the same from the second term 5 to the third term 2 and same applies to each of the next term
this is called the common difference
so can you see the formula now where (n) is the term (n +1) is the next term

Answer 6

So how do i know which answer is correct

Answer 7

which option matches what you had to do to get the values in the series?

Answer 8

c?

Answer 9

no read the thread what did you do to get from 8 to 5 or from 5 to 2 or 2 to -1 ?

Answer 10

-3

Answer 11

ITS D

Answer 12

which option says -3 to get the next term

Answer 13

correct

Answer 14

YAY THANK YOU SO MUCH DONT GO TO MATH CHAT ITS CANCER

Answer 15

you just need to read carefully when matching the options keep practicing

Answer 16

K THX

Answer 17

you are welcome