Find the Partial Derivative $f _ { y } \text { for the function } f ( x , y ) = x ^ { 2 } - 2 y ^ { 2 } + 7$

question 88

Multiple Choice

Find the partial derivative $f _ { y } \text { for the function } f ( x , y ) = x ^ { 2 } - 2 y ^ { 2 } + 7$

• A) \(f _ { y } ( x , y ) = - 8 y\)
• B) \(f _ { y } ( x , y ) = - 5 y\)
• C) \(f _ { y } ( x , y ) = 9 y\)
• D) \(f _ { y } ( x , y ) = - 4 y\)
• E) \(f _ { y } ( x , y ) = 10 y\)

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