The table below shows three values of $x$ and their corresponding values of $p(x)$, where $p(x)=\frac{f(x)}{x-5}$ and $f(x)$ is a linear function.

x	p(x)
3	-2
6	4
7	6

What is the $y$-intercept of the graph of $y=f(x)$ in the $xy$-plane?