1. The problem asks to find the relationship between two goods, $x$ and $y$. 2. Typically, the relationship between two goods can be expressed as a function $y = f(x)$, where $y$ depends on $x$. 3. To calculate this relationship, you need data or a model that links $x$ and $y$. 4. For example, if $y$ is directly proportional to $x$, then $y = kx$ for some constant $k$. 5. If the relationship is more complex, it might be linear, quadratic, or another form, such as $y = ax^2 + bx + c$. 6. To find the exact relationship, you can use methods like regression analysis on data points of $x$ and $y$. 7. Without specific data or context, the general approach is to hypothesize a function and verify it with data. 8. In summary, the relationship between goods $x$ and $y$ is a function $y = f(x)$ determined by the context or data available.