the number of subscribers to a streaming video service doubles each week. The function f(x)=2^x represents the number of subscribers in a week x. when are there 64 subscribers?
For this case we have the following function:  f (x) = 2 ^ x  For f (x) = 64 we have:  64 = 2 ^ x  Clearing the value of x we have:  log2 (2 ^ x) = log2 (64)  x = log2 (64)  x = 6  Answer:  there are 64 subscribers in:  A. week 6
