Answer: Therefore, the value of h is -6.
Step-by-step explanation: The slope of a line is given by the formula:
slope = (y2 - y1) / (x2 - x1)
where (x1, y1) and (x2, y2) are two points on the line.
In this case, the slope of the line is -2, and the two points on the line are (-1, -2) and (h, -8). Plugging these values into the formula gives us:
-2 = (-8 - (-2)) / (h - (-1))
Solving this equation for h gives us:
h = -6
Therefore, the value of h is -6.