Concept explainers
Identifying surfaces Consider the surfaces defined by the following equations.
a. Identify and briefly describe the surface.
b. Find the xy-, xz-, and yz-traces, when they exist.
c. Find the intercepts with the three coordinate axes, when they exist.
d. Make a sketch of the surface.
15. y2 + 4z2 – 2x2 = 1
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