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{{20,12},{40,25},{60,38},{80,50},{100,63},{120,75},{150,95},{170,108}}
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random