Use the Definition of Partial Derivatives as Limits to Find $f _ { x } ( x , y )$

question 51

Multiple Choice

Use the definition of partial derivatives as limits to find $f _ { x } ( x , y )$ if $f ( x , y ) = 5 x ^ { 2 } - 7 x y + 2 y ^ { 2 }$ .
Select the correct answer.

• A) \(5 y - 7 x\)
• B) \(10 x - 7 x y\)
• C) \(10 x - 7 y\)
• D) \(10 x - 7\)
• E) \(5 x - 7 y\)

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