Solve Problems Involving Joint Variation
- $z$ Varies Jointly As $y$ And the Cube Of

question 267

Multiple Choice

Solve Problems Involving Joint Variation
- $z$ varies jointly as $y$ and the cube of $x ; z = 80$ when $x = 2$ and $y = - 5$

• A) \(y = - 2 x ^ { 3 } y\)
• B) \(y = - 2 x y ^ { 3 }\)
• C) \(y = 2 x ^ { 3 } y\)
• D) \(y = 2 x y ^ { 3 }\)

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