(adsbygoogle = window.adsbygoogle || []).push({}); ellipse - urgent help needed

Hi there.. i have an exam tomorrow morning and can't figure this out.

ellipse defined by 3x^2 + 2y^2 = k

length of major axis is 6

find k?

ok.. i know that the major axis = 2a, so in this case a = 3

the general form of an ellipse is

x^2/a^2 + y^2/b^2 = 1

???? where do i go now ????

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Ellipse - help needed

**Physics Forums | Science Articles, Homework Help, Discussion**