Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
plot (|x+7|-|x+5/2|,|x+7|-|x-6/7|,|x+7|-|x-2|,-5/2,6/7,2) where x=-10..5
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random