Provide an Appropriate Response $x y ^ { 2 } = 4$

question 168

Multiple Choice

Provide an appropriate response.
-If $x y ^ { 2 } = 4$ and $d x / d t = - 5$ , then what is $d y / d t$ when $x = 4$ and $y = 1$ ?

• A) \(\frac { 5 } { 8 }\)
• B) \(- \frac { 5 } { 8 }\)
• C) \(- \frac { 8 } { 5 }\)
• D) \(\frac { 8 } { 5 }\)