Determine the Constant of Variation for the Stated Condition $y$ Varies Directly as the Cube Of

question 302

Multiple Choice

Determine the constant of variation for the stated condition.
-If $y$ varies directly as the cube of $x$ , and $y = 5$ when $x = 2$ , find $y$ when $x = 8$ .

• A) 320
• B) 20
• C) \(\frac { 5 } { 4 }\)
• D) \(\frac { 5 } { 64 }\)

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