Pre-cal Logarithms

[Gingercat]

I really just don't understand them that well, especially how to Graph them, do you think someone could explain better how to graph a pair like

f(x)=2^x , g(x)=2^x-2

 

[ChaoticLlama]

Try getting a feel by graphing different functions here

http://www.calc101.com/webMathematica/sketch.jsp

Don't use this to give you the answers per se.. but input several different exponential functions to understand how changes to the function will affect the graph.