Every day, there are 2 times more likes on an internet video of a bird which is modeled by the function c(n) = (2)n − 1, where n is the number of days since the video posted. On the first day, there were 122 likes. What is the function that shows the number of likes each day?

c(n) = (2)122 − 1
c(n) = 122(2)n − 1
c(n) = (2)(122)(n − 1)
c(n) = (122)n − 1

Question

Every day, there are 2 times more likes on an internet video of a bird which is modeled by the function c(n) = (2)n − 1, where n is the number of days since the video posted. On the first day, there were 122 likes. What is the function that shows the number of likes each day?

 c(n) = (2)122 − 1
 c(n) = 122(2)n − 1
 c(n) = (2)(122)(n − 1)
 c(n) = (122)n − 1

itsmichelle29 · Answer

@SolomonZelman

solomonzelman · Answer

ok, so "every day there are times more"
that is indicating a growth by multiplication or addition ?

solomonzelman · Answer

and your c(n) function should read:

$c(n)=2^{n-1}$

solomonzelman · Answer

2 times more likes = the likes are growing ×2 every time

is this correct?

solomonzelman · Answer

yes

solomonzelman · Answer

very quick, nice!

itsmichelle29 · Answer

Thanks

solomonzelman · Answer

You don't need to thank me, you done it all yourself:)