Find the Constant of Variation y=2 x=-9

$y = 2$ $x = - 9$

Step 1

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

$y = k x$

Step 2

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

$k = \frac{y}{x}$

Step 3

Replace the variables $x$ and $y$ with the actual values.

$k = \frac{2}{- 9}$

Step 4

Move the negative in front of the fraction.

$k = - \frac{2}{9}$

Find the Constant of Variation y=2 x=-9

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