Answer
Please see the graph.
Work Step by Step
$2x+y = -3$
Let $x=0$
$2x+y = -3$
$2*0+y = -3$
$0 + y =-3$
$y = -3$
Let $y = 0$
$2x +y = -3$
$2x+ 0 = -3$
$2x = -3$
$2x/2 = -3/2$
$x = -3/2$
The given points are (0,-3) and (-1.5, 0).