Answer
$y=\frac{1}{5}x-4$
Work Step by Step
$y=\frac{1}{5}x-4$
The equation of a line is: $y=mx+c$
The coefficient of $x$ is $m$, which is the slope.
Slope is $\frac{1}{5}$.
$y=\frac{1}{5}x+c$
$c$ is the $y$-intercept.
$y$-intercept occurs when $x$ is $0$.
The coordinate is $(0,-4)$.
$c=-4$
