Question

Vera uploaded a hilarious video of a squirrel to a funny videos website. It was viewed 320 times on the first day. Each day since then, the number of views was 25% more than the day before.Let f(n)f(n) be the number of views Vera's video got on the n^\text{th}n
th
day since she uploaded it.

Answer 1

Answer:

$f(n) =320\times (1.25)^{n-1}$

Step-by-step explanation:

On first day , the video was viewed = 320 times .

We are given that Each day since then, the number of views was 25% more than the day before. This means the likes are increasing 1.25 per day .

So, this situation forms G.P.

Where common ratio r = 1.25

First term = f(1) = 320

Formula of nth term in G.P. = $f(n) =f(1)\times r^{n-1}$

So, nth term of the given situation :

$f(n) =320\times (1.25)^{n-1}$

Where f(n) denotes the number of views on nth day .

So, the number of views Vera's video got on the nth day = $320\times (1.25)^{n-1}$

Answer 2

Answer: f(n) = 320 x (1.25)^n-1

              The sequence is geometric sequences

Step-by-step explanation: