Asked by lee

Could someone check my work;
1. Generate the first five terms in the sequence using the explicit formula.

yn = –5n – 5

–30, –25, –20, –15, –10
30, 25, 20, 15, 10
–10, –15, –20, –25, –30(my answer)
10, 15, 20, 25, 30

2. What is the 15th term in the sequence using the given formula?

cn = 3n – 1

14
57
44
–44(my choice)

3. Write a recursive formula for the sequence 7, 13, 19, 25, 31, ... Then find the next term.

an = an– 1 + 6, where a1 = 7; 37(my choice)
an = an– 1 + 6, where a1 = 37; 7
an = an– 1 – 6, where a1 = 6; –23
an = an– 1 – 6, where a1 = 7; –8

4. Write a recursive formula for the sequence 7, 4, 1, –2, –5, .... Then find the next term.

an = an–1 – 3, where a1 = –8; 7
an = an–1 – 3, where a1 = 7; –8(my answer)
an = an–1 + 3, where a1 = –3; 22
an = an–1 + 3, where a1 = 7; –8

5. Write an explicit formula for the sequence 8, 6, 4, 2, 0, ... Then find a14.

an = –2n + 10; –16
an = –2n + 8; –18
an = –2n + 8; –20
an = –2n + 10; –18
Dont understand this problem.
Answered by Reiny
your first four are correct

#5.
In the explicit formula, you can find any term directly , unlike a recursive, where you have to know the previous term

so if n = 1, we should get 8 from the formula
look at the first and last
the both give you
a(1) = -2(1) = 10 = 8
a(14) = -2(14) + 10 = -28+10= -18
so it has to be the last one.
Answered by a


Multiple Choice
1. Generate the first five terms in the sequence using the explicit formula.

yn = –5n – 5 (1 point)
(0 pts) –30, –25, –20, –15, –10
(0 pts) 30, 25, 20, 15, 10
(1 pt) –10, –15, –20, –25, –30
(0 pts) 10, 15, 20, 25, 30
1 /1 point
2. What is the 15th term in the sequence using the given formula?

cn = 3n – 1 (1 point)
(0 pts) 14
(0 pts) 57
(1 pt) 44
(0 pts) –44
0 /1 point
3. Write a recursive formula for the sequence 7, 13, 19, 25, 31, ... Then find the next term. (1 point)
(1 pt) an = an– 1 + 6, where a1 = 7; 37
(0 pts) an = an– 1 + 6, where a1 = 37; 7
(0 pts) an = an– 1 – 6, where a1 = 6; –23
(0 pts) an = an– 1 – 6, where a1 = 7; –8
1 /1 point
4. Write a recursive formula for the sequence 7, 4, 1, –2, –5, .... Then find the next term. (1 point)
(0 pts) an = an–1 – 3, where a1 = –8; 7
(1 pt) an = an–1 – 3, where a1 = 7; –8
(0 pts) an = an–1 + 3, where a1 = –3; 22
(0 pts) an = an–1 + 3, where a1 = 7; –8
1 /1 point
5. Write an explicit formula for the sequence 8, 6, 4, 2, 0, ... Then find a14. (1 point)
(0 pts) an = –2n + 10; –16
(0 pts) an = –2n + 8; –18
(0 pts) an = –2n + 8; –20
(1 pt) an = –2n + 10; –18
1 /1 point
Answered by Becky
^^^^100%^^^^
Answered by Joe
You are a godsend
For everyone else:
C
C
A
B
D
Answered by Tom
Much love
Answered by Pickle
Lol, you all talk like ur in middle school xD jus ignore the wrong answers
Answered by L
a's answers are 100% correct. For anyone who wants the letter answers from a's response are below:

1. C
2. C
3. A
4. B
5. D

100%
Answered by N/a
You are a godsend
For everyone else:
C
C
A
B
D

1 0
posted by Joe
Mar 31, 2017 at 1:28pm
100%%%%%%%%%%%%%%%%%%%%%
Answered by lucretia
What is the 15th term in the sequence using the given formula?

yn = 12n-1
Answered by Anon
CCABD are correct as of 2020
Answered by K
CCABD Correct as of May 4th 2020
Answered by micky
CCABD are still correct as of feb 24 2021
Answered by vel
THANK YOU<3
Answered by Ynw
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Answered by Trust
CCABD
Answered by Purrr
YASS TY BESTIEEE <3
Answered by ong
CCABD is correct as far as november 2021
Answered by Steve
CCABD are still correct as of feb 2022
Answered by You are valid and loved!!!
CCABD are still the right choices for anyone who still needs to check their answers for the quiz in 2022!
Answered by 🌚
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Answered by jae
still right now
Answered by stan nct127
Still correct tysm guys <3
Answered by muah
ccabd is still correct in 2022
Answered by C
Still correct!
Answered by Anonymous
Still correct!!!
Answered by strawberry
still correct as of April 2022 🍓!!
Answered by actual heroes
They might've been forgotten by some, but not me. Thank you for your services o7
Answered by WORT
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Answered by Lori
Still correct as of 7/31/22
Answered by Lol
STILL GOOD FEBRUARY OF 2023💝💖💌
Answered by Variant 5
it works as of march 2023
c.
c.
a.
b.
d.
Answered by anyonomas
thx :D
Answered by Am I Lying?
Still correct as of May 3rd 2023 - 5/3/23
Answered by Bot
Thank you for keeping the thread up to date! It's great to see everyone working together to ensure accurate information.
Answered by Bruh
CCABD Still right as of September 2023