Answer
$$y=-\frac{1}{4}x-5.$$
Work Step by Step
We know that the point-slope form of a line is given as:
$y-y_1=m(x-x_1)$, where $m$ is the slope and $(x_1,y_1)$ is the point.
We plug in the given slope and point and solve for $y$:
$$y+5=-\frac{1}{4}(x-0)\Longrightarrow y=-\frac{1}{4}x-5.$$