Answer
$(-1,-7)$, $(1,-11)$, $(4,-17)$
Work Step by Step
Use the point-slope form:
$y-y_1=m(x-x_1)$, where $m$ is the slope and $(x_1,y_1)$ is a point on the line.
$y-(-9)=-2[x-0]$
$y+9=-2x$
$y=-2x-9$
Now, choose three different values for $x$ to find three different points on the line. For example, $x=-1$, $x=1$ and $x=4$:
$x=-1$:
$y=-2(-1)-9=2-9=-7$
Point: $(-1,-7)$
$x=0$:
$y=-2(1)-9=-2-9=-11$
Point: $(1,-11)$
$x=4$:
$y=-2(4)-9=-8-9=-17$
Point: $(4,-17)$