<p>$y$ is directly proportional to ${{x}^{3}}$.  It is also given that $y=24$ when $x=2$.</p>
<ol class="abc-list"><li><div class="list-item-paragraph">Find the equation connecting $y$ and $x$.</div></li><li><div class="list-item-paragraph">Hence, find the value of $y$ when $x=3$.</div></li></ol>

$y$ is directly proportional to ${{x}^{3}}$.  It is also given that $y=24$ when $x=2$.

Find the equation connecting $y$ and $x$.

Direct Proportion Involving Cubic Powers

Direct Proportion Involving Cubic Powers

Video Solution: