#### Answer

$2x-y=-4$

#### Work Step by Step

Given the intercepts, we have two points on the line:
$(-2,0)$ and $(0,4)$.
Slope: $m=\displaystyle \frac{4-0}{0-(-2)}=\frac{4}{2}=2$
Slope-intercept form: $y=mx+b$
(y-intercept: 4)
$y=2x+4\qquad/-y-4$
$-4=2x-y$
$2x-y=-4$