Find a Normal Vector to the Surface $x y z = 8$

question 205

Multiple Choice

Find a normal vector to the surface $x y z = 8$ at the point $( 1,2,4 )$ .

• A) \(2 \mathbf { i } + 4 \mathbf { j } + \mathbf { k }\)
• B) \(\mathbf { i } + 4 \mathbf { j } + 2 \mathbf { k }\)
• C) \(4 \mathbf { i } + 2 \mathbf { j } + \mathbf { k }\)
• D) \(\mathbf { i } + 2 \mathbf { j } + 4 \mathbf { k }\)
• E) \(4 \mathbf { i } + \mathbf { j } + 2 \mathbf { k }\)
• F) \(2 \mathbf { k } + \mathbf { j } + 4 \mathbf { i }\)

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