Simple growth of bacteria question

http://imgur.com/0sNNE33&JoCg6CW

I don't know how to do this question in matlab, how do you do it?

Answer 1

[Roger Stafford]

Knowing how to do it in matlab is only a small part of solving this problem. You should first follow the given hint - the number of bacteria doubles every 40 minutes. Use this to determine what the value k is. Suppose you decide that a minute will be your fundamental unit of time. Then you should ask yourself this question: if we start with one bacterium and forty minutes later we have two of them, the equation would have to be:

 2 = 1*exp(k*40)

Now what value must k have to satisfy this equation? I will give you one further hint. If two sides of an equation are equal, then so are their logarithms! The rest is up to you, Astuream.

[Astuream Arkunosm]

I need further help.

[ASWIN BABU]

more help pls..