Julius

pH = -log[H+] 

pH = -log[3.3x10^-3] 

pH = 2.5

True: But w/o seeing the graph how would you know that at 3 months it's at its maximum population?

I see that. But how do you do it algebraically? 

Ohhh I get it. It's d. Because the derivative of that is f'(x) = 5 so whatever value of x will always give us 5. Thanks for helping me through that :) 

Oh, my! How could I make such a mistake 

Thanks, CPhill! 

If we rearrange: 

xy=8 

y = 8/x 

Since there is an x in the denominator this makes it a reciprocal graph. 

I haven't done this yet :| 

However, symbolab.com will solve something like this for you and show its steps. It's very useful. 

Thanks, Melody! 

I'm a bit confused on how there is a point 3,2. :| 

It's called magic little kids 

He sure is good though