Monday
April 27, 2015

Homework Help: Precalculus

Posted by Emily on Monday, November 23, 2009 at 11:21pm.

"Sketch the ellipse. Find the coordinates of its vertices and foci.

34. x^2 + 25y^2 - 6x - 100y + 84 = 0
(Hint: Complete the squares in x and y. Begin by writing the equation in this form: (x^2 - 6x + ___) + 25(y^2 - 4y + ___) = -84.)"


==> I used the hint that came with the problem, but as I tried to solve the equation into the general form for an ellipse, I was getting negative denominators, which would make a and b contain imaginary numbers. Does anyone know how to solve this? Any help is greatly appreciated! :)

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