Compute the Gradient of the Function at the Given Point $f ( x , y , z ) = - 7 x - 7 y - 6 z , \quad ( 3 , - 8,5 )$

question 215

Multiple Choice

Compute the gradient of the function at the given point.
- $f ( x , y , z ) = - 7 x - 7 y - 6 z , \quad ( 3 , - 8,5 )$

• A) \({\nabla} f = - 7 \mathbf { i } - 7 \mathbf { j } - 6 \mathbf { k }\)
• B) \({\nabla} f = - 21 \mathbf { i } - 56 \mathbf { j } - 30 \mathbf { k }\)
• C) \({\nabla} f = \mathbf { i } - 8 \mathbf { j } + 5 \mathbf { k }\)
• D) \({\nabla} f = - 21 \mathbf { i } + 56 \mathbf { j } - 30 \mathbf { k }\)

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