Let $f ( x , y ) = 3 x + 2 y$

question 199

Multiple Choice

Let $f ( x , y ) = 3 x + 2 y$ . Find the gradient vector $\nabla f$ .

• A) \(3 x \mathbf { i } + 2 y \mathbf { j }\)
• B) \(3 x ^ { 2 } \mathbf { i } + 2 y ^ { 2 } \mathbf { j }\)
• C)
• \(2 x \mathbf { i } + 3 y \mathbf { j }\)
• D) \(2 x ^ { 2 } \mathbf { i } + 3 y ^ { 2 } \mathbf { j }\)
• E) \(3 y \mathbf { i } + 2 x \mathbf { j }\)
• F) \(2 y \mathbf { i } + 3 x \mathbf { j }\)

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