Answer: -8
Explanation:
The line has a slope of 1/6, which means the x coordinate increases by 6 for every 1 the y coordinate increases.
In these two points, the x coordinate is decreasing by 12.
We need to divide that by 6, because the y increases 1 for every 6 the x increases.
12/6 = 2, which means that between the x coordinates of 10 and -2, the y coordinate has decreased by two.
We need to add 2 to -10 to get our answer, which is -8.