Chapter 12 - Matrices - 12-1 Adding and Subtracting Matrices - Practice and Problem-Solving Exercises - Page 770: 43

$\begin{align*} \text{Slope: }&m=5 \\y-\text{intercept: }& 0 \end{align*}$

The Slope-Intercept Form of the equation of lines, which is given by $y=mx+b,$ has slope $m$ and $y$-intercept of $b$. With the given equation, $ y=5x ,$ then \begin{align*} \text{Slope: }&m=5 \\y-\text{intercept: }& 0 .\end{align*}