$\text { Find } \frac { d y } { d x } \text { by implicit differentiation given that } 2 x y = 9 \text {. }$

question 30

Multiple Choice

$\text { Find } \frac { d y } { d x } \text { by implicit differentiation given that } 2 x y = 9 \text {. }$

• A) \(\frac { d y } { d x } = - \frac { 9 y } { x }\)
• B) \(\frac { d y } { d x } = - 9 x y\)
• C) \(\frac { d y } { d x } = - x y\)
• D) \(\frac { d y } { d x } = 9 x y\)
• E) \(\frac { d y } { d x } = - \frac { y } { x }\)

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