#### Answer

Point A:
$y=-3x$
$y=-3(0)$
$y=0$
Point B:
$y=-3x$
$y=-3(-2)$
$y=6$
Point C:
$y=-3x$
$9=-3(x)$
$x=\frac{9}{-3}$
$x=-3$

#### Work Step by Step

To find the coordinates of point A and B, substitute the given y-value into the equation $y=-3x$ to find the x-value for that corresponding y-value.
To find the coordinates of point C, substitute the given x-value into the equation $y=-3x$ to find the y-value for that corresponding x-value.
Plot points A, B and C on the graph given and draw a straight line that passes through all three points.