Final answer:
The slope of the line passing through the points (-2, -6) and (2, 2) is calculated using the slope formula and results in a slope of 2, matching Choice D.
Step-by-step explanation:
The slope of a line passing through two points can be calculated using the formula slope (m) = (y2 - y1) / (x2 - x1). Applying this formula to the given points (-2, -6) and (2, 2), we get:
m = (2 - (-6)) / (2 - (-2))
m = (2 + 6) / (2 + 2)
m = 8 / 4
m = 2
Therefore, the slope of the line is 2, which matches Choice D.