I do not even know where to begin with this problem...please help. I am in intermediate algebra, summer session, which is moving quite fast. It seems as if there is no time for understanding.

Please explain how would I know when to use log in the equation when I have a word problem and it is only asking to find an equation for f.

Also what is the base b of the function f(t)= ab^t?

How do I find regression equations?

Please help, I have a test on Tuesday.