y - 8 = 4/3*(x - 8) in standard form
$$\small{\text{$
\begin{array}{rcll}
y - 8 &=& \frac{4}{3}\cdot (x - 8) \quad &| \quad +8\\\\
y &=& \frac{4}{3}\cdot (x - 8) +8\\\\
y &=& \frac{4}{3}\cdot x - \frac{4}{3}\cdot 8 +8\\\\
y &=& \frac{4}{3}\cdot x - \frac{4}{3}\cdot 8 +\frac{3}{3}\cdot8\\\\
y &=& \frac{4}{3}\cdot x - 4\cdot \frac{8}{3} +3\cdot\frac{8}{3}\\\\
y &=& \frac{4}{3}\cdot x - \frac{8}{3}\\\\
\end{array}
$}}$$