# If Z varies directly with x and inversely with y^2 when x=2 and y=5, z=8 what is the value of z when x=4 and y=9?

##### 1 Answer

May 24, 2016

#### Answer:

#### Explanation:

Direct Variation is

Inverse Variation is

If

If

Combining these two equations we get

We use the first set of values to solve for the constant of variation

Now use the constant