Posted by **Elyse** on Wednesday, May 15, 2013 at 1:33pm.

describe the surface and give traces :

x = y^2 - 4z^2

- Calculus -
**Steve**, Wednesday, May 15, 2013 at 3:00pm
It's a hyperbolic paraboloid

for y=k, x = k^2-4z^2

for z=k, x = y^2-4k^2

both are parabolas

for x=k, y^2-4z^2 = k^2

is a hyperbola

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