Examples

y = - 7 x^{2}

$y = - 7 x^{2}$

Step 1

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

$- 7$ .

$- 7$

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