Plot a function

Hey guys.

I'm trying to plot this function

http://img42.imageshack.us/img42/7415/77048725.jpg

But all I get as you can see is a link to the Plot function in the help menu.

I'm pretty sure it's a stupid mistake because I'm like totally new to this thing (Speechless)

Can I please have some help.

Thanks.

Hi!!!
would you please give a shot(photo) of the help that is in the link you are getting?

Hi.

OOps, sorry,
I had the wrong idea :(

Someone please delete it

Yours,
Rapha