Finite Math Examples

$x - 2 y + 5 z = - 6$ , $x + 2 y + 3 z = 0$ , $x + 3 y^{2} z = 5$

Step 1

When three variable quantities have a constant ratio, their relationship is called a direct variation. It is said that one variable varies directly as the other two vary. The formula for direct variation is $y = k x z^{2}$ , where $k$ is the constant of variation.

$y = k x z^{2}$

Step 2

Solve the equation for $k$ , the constant of variation.

$k = \frac{y}{x z^{2}}$