Chapter 7, Problem 1CR

To determine

To find: $xandy$ show direct variation, inverse variation or neither.

Answer to Problem 1CR

Inverse variation.

Explanation of Solution

Given: $xy=5$

General equation of inverse variation $y=\frac{a}{x}$

Here $xy=5$

Solving for $y$

We get

  $\begin{array}{l}xy=5\\ y=\frac{5}{x}\end{array}$

The equation is in the form of inverse variation

Thus

  $xandy$ Show inverse variation.