Question

algebra? i need help? anyone?

Answer 1

Yes?

Answer 2

im in algebra 2 for connections if thats what u mean:)

Answer 3

I'm In algebra 1 can you help me? @lexi503

Answer 4

algerbra 1 is easy lol

Answer 5

what are your questions?

Answer 6

im not very good at it..:/ i need help myself actually

Answer 7

this is where the party is at

Answer 8

this is my first yr of high school it isnt easy for me :/

Answer 9

party is where i am brother

Answer 10

what are your questions?

Answer 11

What do you need help with?

Answer 12

The first five terms of a sequence are shown below.

5, 9, 13, 17, 21

If the nth term of this sequence is represented by f(n ), which of the following functions best represents this sequence?

f(n ) = 5n - 1; n > 1
f(n ) = 5n + 1; n > 1
f(n ) = 4n - 1; n > 1
f(n ) = 4n + 1; n > 1

Answer 13

The best way to do that is to plug in n and see if you get the proper f(n).

Answer 14

lets look at the first one

Answer 15

ok

Answer 16

5n-1 n>1

Answer 17

plug in see what you get

Answer 18

how do i do that? do i need to use a calculator?

Answer 19

see how 5, 9, 13, 17, 21 add by 4?
lol no need for calculator 5(1)-1=?

Answer 20

6?

Answer 21

im confused :/

Answer 22

if you mind can you give me an answer and then explain to me why so i can figure it out?

Answer 23

jb1515gIt's 4n + 1.

Look:

n=1, 4(1) + 1 = 5
n=2, 4(2) + 1 = 9
n=3, 4(3) + 1 = 13

That is the pattern for the function from @jb1515g hes a genous

Answer 24

i was doing something else lol genious*

Answer 25

ok so im kinda getting it now so like 2,4 gives you 6 and 4(2) gives you 8 and + 1 gives you 9 :D?

Answer 26

I do my best. More important is that you understand WHY. "n" is the place in the pattern. f(n) is the answer you get when you plug that place in the pattern into the formula. So for n=1 (the first number in the patten) you would plug in 1 and get 4*1 + 1 = 5. And that matches! To check your answer, plug in 2 (representing the SECOND place in the pattern) and you get 4*2 + 1 = 9, which is the correct number in the pattern. So on and so forth.

Answer 27

so 4n + 1 is the answer?

Answer 28

f(n ) = 4n + 1; n > 1

Answer 29

thanks i totally get it now, can you help me with one more? @Reaper534

Answer 30

sure