The correct answer is y-axis, x-axis, y-axis, x-axis.
Surface currents are mostly caused by wind when it moves the surface of the ocean water.
A) New branch in:
2nd stage=2
3rd stage=4
4th stage=8
which can be listed as 2,4,8,...
Here,
2nd term/1st term=4/2=2
3rd term/2nd term=8/4=2
Since common ratio is 2, the given sequence is geometric sequence.
b) The required function is,
B(n)=2^(n-1)
{just put n=1,2,3.. here to check if it gives accurate no of branches in each step or not}
where n is stage number
c)Using above function to calculate total no of branches growing out in the 8th stage,
B(8)=2^(8-1)=2^7=128
