Given the surface 9x^2 − 4z^2 = 9y. Find its traces on each coordinate plane and on the planes y=4, y=-4. Give the vertices and sample points of the parabolas and hyperbolas formed.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.6: Quadratic Functions
Problem 36E
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Given the surface 9x^2 − 4z^2 = 9y. Find its traces on each coordinate plane and on the planes y=4, y=-4. Give the vertices and sample points of the parabolas and hyperbolas formed. 

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