linear fit (1/0.7065%5E2,1.3300),(1/0.5893%5E2,1.3330),(1/0.5016%5E2,1.3364),(1/0.4047%5E2, 1.3427)

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.