Answer:
<h2>y = -2x - 10</h2>
Step-by-step explanation:
The formula of a slope:

We have two points (-5, 0) and (-1, -8). Substitute:

The slope-intercept form of an equation of a line:

m - slope
b - y-intercpet
Put the value of the slope and coordinates of the point (-5, 0) to the equation of a line:

<em>subtract 10 from both sides</em>

Finally:

Since the origin is the center of dilation. Take every vertex in the polygon ABCD and multiply it by 2 since the dilation factor is 2. It will result to polygon A'B'C'D'. Compare then the points given to the new points after dilation.