[tex]Equation\ for\ line\ in\ slope\ intercept\ form:\\
y=ax+b\\\\
In\ this\ exercise\\\\ b=basic\ wage\ which\ is\ constant\ -always\ the\ same\\
ax=paid\ for\ overtime\ which\ depends\ on\ amount\\ of\ overtime\ hours\\\\
b=600\$\\
ax=25\$*h\\\\
We\ can\ substitute\ those\ data\ into\ formula\ for\ line\\ in\ slope\ intercept\ form:\\
\textbf{y=25h+600}
[/tex]