A particular type of cell doubles in number every hour. Which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells

a) n=4(1/2)^h
b) n=4(2)^h
c) n=4+(2)^h
d) n=4+(1/2)^h

The correct function to use in this case is:

b) n = 4(2)^h

This function accounts for the fact that the number of cells doubles every hour.