Concept explainers
Quadric surfaces Consider the following equations of quadric surfaces.
a. Find the intercepts with the three coordinate axes, when they exist.
b. Find the equations of the xy-, xz-, and yz-traces, when they exist.
c. Sketch a graph of the surface.
Elliptic cones
63.
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Calculus: Early Transcendentals (3rd Edition)
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