a website has 500,000 members in 2010. The number of members increases by 15% each year. Write an exponential growth function that represents the website membership t years after 2010. use the equation to find: how many members will there be in 2016. please help with both.

Question

a website has 500,000 members in 2010.  The number of members increases by 15% each year.  Write an exponential growth function that represents the website membership t years after 2010.  use the equation to find:  how many members will there be in 2016.  please help with both.

Steve · Answer

M(t) = 500000*1.15^t Now just find M(6) although, technically, M(6) is the number of members at the end of 2016...

Jay · Answer

thanks, i got it. What numbers do i use for the log to find the year there will be 2,000,000 members?