Answer
$y=-4x-24$
Work Step by Step
Let $(x_{1},y_{1})=(-6,0)$ and $(x_{2},y_{2})=(0,-24)$
Slope $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{-24-0}{0-(-6)}=\frac{-24}{6}=-4$
Because the line crosses the y-axis at $(0,-24)$,
Y-intercept $b=-24$.
Slope-intercept form is
$y=mx+b$.
Substituting the values of $m$ and $b$, we get an equation of line as
$y=-4x-24$
