Question

Many times a tweet will be tweeted and then retweeted with the possible number of retweets growing exponentially. Sally modeled this phenomenon with the function f(x)=3(2x), using x to represent the number of intervals in which the tweet was retweeted. Which statement about sally’s function is true?A: there are 3 times 2 or 6 retweets at each levelB: at each interval, the number of retweets doublesC: a tweet can be retweeted a maximum of 3 timesD: there were 2 original tweets

Answer 1

Solution

Given

$f(x)=3(2^x)$

when x = 1 , f(x) = 6

x = 2, f(x) = 12

x = 3, f(x) = 24

Therefore, at each interval, the number of retweets doubles

Option B