The equation for an inverse variation is y = k x .

k is the constant. It is the product of the quantities. As one value increases the other decreases creating a constant that is always the same.

The variables x and y are the increasing and decreasing values.

Example: y varies inversely as x. If y = 6 when x = 2, find y when x is 3.

The inverse variation equation is y = k x , where k is the product of x and y.

Fill in the missing values by moving the values to the correct location.

Find y when x is 3.

Example: v varies inversely with m. If v = 10 when m = 1 3 , find v when m is 10.

Find v when m is 10.

The inverse variation equation is y = k x , where k is the product of x and y.