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January 25, 2015

January 25, 2015

Posted by **amaa** on Friday, November 30, 2012 at 4:17am.

9x^2 + y^2 = 81

- math -
**Reiny**, Friday, November 30, 2012 at 8:31amdivide by 81

x^2/9 + y^2/81 = 1

then look at my reply to your other post for the same kind of question

http://www.jiskha.com/display.cgi?id=1354265681

- math -
**amaa**, Friday, November 30, 2012 at 7:28pmthanks I got it right.

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