For the function $z = \sqrt { x ^ { 2 } + y ^ { 2 } - 1 }$ , sketch the level curves $z = k$ for $k =$ 0, 1, 2, and 3.

Name: For the function $z = \sqrt { x ^ { 2 } + y ^ { 2 } - 1 }$ , sketch the level curves $z = k$ for $k =$ 0, 1, 2, and 3.
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The Answer of For the function $z = \sqrt { x ^ { 2 } + y ^ { 2 } - 1 }$ , sketch the level curves $z = k$ for $k =$ 0, 1, 2, and 3.

For the Function z=x2+y2−1z = \sqrt { x ^ { 2 } + y ^ { 2 } - 1 }z=x2+y2−1​

For the Function $z = \sqrt { x ^ { 2 } + y ^ { 2 } - 1 }$