Ben and Mike Group A

Months since (including)-Facebook User Accounts
January 2004


12-1 million


24-12 million


28-20 million


38-50 million


48-100 million


53-150 million


54-175 million


56-200 million


59-250 million


61-300 million


64-350 million


Exponential regression




y=706705.67(1.11)^x

y=a(b)^x


a determines what month the graph starts at


b is what determines how quickly the number of facebook users increases each month (steepness)


x is the # of months


y is the number of active facebook accounts



This month=853,495,298 users
y=706705.67(1.11)^68
y=853,495,298


6 months from now= 1,596,390,027 users
y=706705.67(1.11)^74

Everyone will have facebook by:
6,000,000,000=706705.67(1.11)^x
8,940.10=1.11^x
Log(8,940.10)=x((Log(1.11))
x=87 months
=7 years 3 months