- #1

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^{2}and x

^{2}+ 4y

^{2}+ 4z

^{2}=16. I know the graph of the first equation is a parabola which stretches from negative infinity to infinity in the z direction. I also know that the second equation is that of an ellipsoid.

I have attempted to solve this by substituting x

^{2}for y in the second equation which I think produces an ellipse. After this I am stuck.