Every day, there are 4 times more likes on an internet video of a horse which is modeled by the function c(n) = (4)n − 1, where n is the number of days since the video posted. On the first day, there were 100 likes. What is the function that shows the number of likes each day?

Question

anonymous · Answer

@beccaboo333

beccaboo333 · Answer

Oh I'm not good with math

anonymous · Answer

oh ok do you know anyone that is that's online?

beccaboo333 · Answer

@amistre64  is good :3

amistre64 · Answer

lol, im good?

anonymous · Answer

:D ill be the judge of that lol jkjkjk

beccaboo333 · Answer

Amistre is the bestest person with math in the whole world. Trust what he says to do for math. Better?

amistre64 · Answer

so, how many likes on the first day?

amistre64 · Answer

each day is 4 times more than c(n) = (4)n − 1 .... you are going to have to notate this better.

anonymous · Answer

c(n)=4^( n-1) sorry

amistre64 · Answer

Every day, there are 
       4 times more likes than c(n) = 4^(n-1),
             where n is the number of days since the video posted.

On the first day, there were 100 likes. 
      On our own video?  or on the video of the horse?

What is the function that shows the number of likes each day?

anonymous · Answer

so is it 100(4)^n-1?

amistre64 · Answer

c1 = 1
c2 = 4
c3 = 16
c4 = 64  etc   is the number of likes on the horse video, not ours ... right?

anonymous · Answer

yes :)

amistre64 · Answer

and we are 4 times more than c(n) each day.

amistre64 · Answer

but we start off our first day with 100 likes .... the informations not making any sense to me since 100 on day 1 is clearly not 4*1

anonymous · Answer

yah

amistre64 · Answer

What is the function that shows the number of likes each day? 

Given that:  Every day, there are 4 times more likes on an internet video of a horse which is modeled by the function c(n) = 4^(n − 1), where n is the number of days since the video posted.

and:  On the first day, there were 100 likes. 


it appears to say that the number of likes each day is 4c(n) since the function c(n) can already be assessed.  But then it suggests that that is not the case ....

amistre64 · Answer

i cant make any good sense of it

anonymous · Answer

poop haha what would you do? the answer choices are

c(n) = 100(4)^n − 1 

 c(n) = (4)(100)^(n − 1) 

 c(n) = (100)^n − 1 

 c(n) = (4)^100 − 1

amistre64 · Answer

id take a wild guess .... the first one

anonymous · Answer

and I have a couple more can you help?

amistre64 · Answer

not if they are anything like this one

anonymous · Answer

hahaha umm

amistre64 · Answer

oh good, numbers .... thats much better

amistre64 · Answer

i can narrow it down to 1, which when chked fits.  any ideas?

amistre64 · Answer

notice the graph decreases as n gets bigger.

16^n  doesnt decrease
2^n doesnt decrease
(-2)^n doesnt decrease
(1/2)^n does decrease

anonymous · Answer

1/2^n-1 :D

anonymous · Answer

@amistre64 :D