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 coordinates {(1, 1), (7, 1), (7, 5), (1, 5)}
plot coordinates {(1, 1), (7, 1), (7, 5), (1, 5)}
Natural Language
Math Input
Extended Keyboard
