The canonical form for an ellipse is
(x/a)2 + (y/b)2 = 1
where a and b are the major and minor radii respectively (note: major>minor).
If you rewrite
36X2 + 81y2 = 2916
as
(6x)2 + (9y)2 = 542
you should have no problem finding a and b.
See also:
http://en.wikipedia.org/wiki/Ellipse
Could you please show me step by step how to solve this problem?
Suppose that the equation of an ellipse is 36X^2 + 81y^2 = 2916
Find the major and minor radii. Use these numbers and the realtionship in problem 11 to calculate c, the focal readius for this elipse.
number 11 stated exlapin why b^2 + c^2 = a^2. Write this relationship on your index card.
THANK YOU!
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l was not even born yet in jun 9 2009 3 month later l was born
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