Question

Here is 1 and 1 more

Answer 1

@jim_thompson5910

Answer 2

@jim_thompson5910

Answer 3

how far did you get with this one?

Answer 4

so the second one i believe is B and the first one A

Answer 5

how did you get A for the first one?

Answer 6

none of them make sense tbh

Answer 7

are you able to find the slope of the line through any two points?

Answer 8

hold on

Answer 9

hopefully
\[\Large m = \frac{y_2 - y_1}{x_2 - x_1}\]
seems familiar?

Answer 10

yes, its 4

Answer 11

good, so 4 will be in front of the n

ie you'll have 4n and not 5n

Answer 12

so C

Answer 13

the answer is either 4n+1 or 4n-1

to figure out which it is, plug in any point you want and see which points are satisfied

Answer 14

yes 4n+1

Answer 15

+

Answer 16

YAY omg i didnt think of slope formula thanks alot!!! my finals are next week on Wednesday and i need all help i can get thanks but these are last 2 and then i have 1 more that i know answer too but not sure how to get it

Answer 17

go ahead

Answer 18

the second one is in the picture i already provided you with xD

Answer 19

any ideas for that one? or are you stuck completely and haven't gotten started?

Answer 20

no ideas @jim_thompson5910

Answer 21

have you heard of the Fibonacci sequence?

Answer 22

Yes a little

Answer 23

only the name tbh

Answer 24

the sequence is generated by adding the previous two terms

eg: 2+3 = 5
3+5 = 8
5+8 = 13
etc

Answer 25

in terms of fancy notation, this means

f(n) = f(n-1) + f(n-2)

Answer 26

okay @jim_thompson5910

Answer 27

@jim_thompson5910

Answer 28

where are you stuck? there's only one answer choice that fits that format

Answer 29

yeah thats the thing i dont understand

Answer 30

the second one

Answer 31

f(n) is the nth term
f(n-1) is the term just before the nth term
f(n-2) is the term just before the f(n-1) term

Answer 32

adding the previous terms before the nth term means we add up f(n-1) and f(n-2) to get

f(n) = f(n-1) + f(n-2)

Answer 33

which is exactly how the Fibonacci sequence is defined

Answer 34

like thats it or is there more??

Answer 35

@jim_thompson5910

Answer 36

that's all there is to it. As long as n > 2, the sequence holds up

Answer 37

what if it was the other way around
n was less than 2? @

Answer 38

@jim_thompson5910

Answer 39

it wouldn't work because n = 1 leads to f(n-2) = f(1-2) = f(-1) which doesn't make much sense

f(-1) would refer to the negative first term, which doesn't exist

Answer 40

okay thanks !! so much i know i tagged you probably like 50 times today annoying the crap out of you but i have 1 more thing!

Answer 41

do you want new post or this is fine?

Answer 42

either is fine

Answer 43

the answer i picked is correct but i found it on google and not sure how they got that answer

Answer 44

you are correct

Answer 45

you can plug in each point into that equation to check

y = 4(2)^x
8 = 4(2)^1 ... plug in (x,y) = (1,8)
8 = 4(2)
8 = 8 ... works

y = 4(2)^x
64 = 4(2)^4 ... plug in (x,y) = (4,64)
64 = 4(16)
64 = 64 ... works

Answer 46

wow that simple thanks !!!

Answer 47

wish i could givve more medals :)

Answer 48

I'm glad it's clicking now

Answer 49

okay thats it for today will you be on tomorrow ?

Answer 50

I'm not sure

Answer 51

well okay thanks bye!!!!

Answer 52

you're welcome and have a good night