Examples

$y = \frac{7}{3} x^{2}$

Step 1

Combine $\frac{7}{3}$ and $x^{2}$ .

$y = \frac{7 x^{2}}{3}$

Step 2

Since the equation can be written in the form $y = k x^{2}$ , $y$ varies directly with $x^{2}$ and $k$ . The constant of variation, $k$ , is $\frac{7}{3}$ .

$\frac{7}{3}$

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$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$