Question: In Exercises 11 and 12, describe and sketch the graph of the level surface f(x, y, z) = c at the given value of c.

In Exercises 11 and 12, describe and sketch the graph of the level surface f(x, y, z) = c at the given value of c.

f(x, y, z) = x2 - y + z2, c = 2

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