Question

In an inverse variation, y = 1 when x = 4. Write an inverse variation equation that showsthe relationship between x and y.

Answer 1

In an inverse variation as one quantity increases the other decreases. For example, if x increases, y decreases

We can write it as:

x=k/y

where k is a constant.

or

x*y = k

replacing the values:

4*1=k

4=k

x*y=4