Graph y=log_3(-x), How do I input it into my calculator(TI-83 Plus) because I have the picture of the graph in my book and it's not turning out right in the calculator

Question

anonymous · Answer

http://www.wolframalpha.com/input/?i=log_3%28-x%29 make sure to click on "real valued plot"

michele_laino · Answer

please note that your function exists if x<0

michele_laino · Answer

if x<0 then |x|=-x, so your input should be y=3*log_3(x)

michele_laino · Answer

oops sorry:
should be: 
y=log_3 |x|

anonymous · Answer

I'm trying to put it into my calculator and it isn't showing up correctly like the one in the book. And don't know what I'm putting in wrong in the calculator

michele_laino · Answer

please |x|, is absolute value  of x and keep the branch of negative x

michele_laino · Answer

it should be this:
|dw:1418574356104:dw|

michele_laino · Answer

is it like your textbook?

anonymous · Answer

Yes that's what the one in the book looks like, now how would I put the equation into my calculator

michele_laino · Answer

has your calculator the absolute value function?

anonymous · Answer

Yes

michele_laino · Answer

ok! then please, input this: x---> |x|--->log_3|x| and please consider only the graph for negative x values

anonymous · Answer

It came correctly, thank you

michele_laino · Answer

thank you!