Final answer:
The slope of the line that contains the points P(-10, 7) and Q(2, 1) is -1/2.
Step-by-step explanation:
To determine the slope of a line that contains two points, we can use the formula:
slope = (y2 - y1) / (x2 - x1)
Using the given points P(-10, 7) and Q(2, 1), we can substitute the coordinates into the formula:
slope = (1 - 7) / (2 - (-10)) = -6 / 12 = -1/2
Therefore, the slope of the line that contains the points P(-10, 7) and Q(2, 1) is -1/2.