HELP!!! log graphs (1 Viewer)

[joel_x10]

please help, assesment due in 3 days!!!!!!!!!

what is the domain for each of the curves
a) y=lnx
b) y=ln(x2-2) (thats x squared)

 

[acmilan]

Do you know what the ln graph looks like? Basically the value that is inside the log has to be greater than 0. So in the first case its x > 0. Try doing the same for the second one

 

[blackfriday]

if you are unsure, just do what you would have done in year 7 and plot points using your calculator to graph ln(x^2). you'll find the answer is xEr except x=0