Here, we want to write the equation in the point-slope form
We have this as follows;
[tex]\begin{gathered} y-y_1=m(x-x_1) \\ m\text{ = slope = }\frac{4}{5} \\ (x_1,y_1)\text{ = (5,0)} \\ y-0\text{ = }\frac{4}{5}(x-5) \\ y\text{ = }\frac{4}{5}(x-5) \end{gathered}[/tex]