Final answer:
The slope of the line passing through the points (-1, 4) and (2, 2) is -2/3.
Step-by-step explanation:
To find the slope of a line passing through two points, we can use the formula: m = (y2 - y1) / (x2 - x1). In this case, the points are (-1, 4) and (2, 2). Plugging the values into the formula, we get: m = (2 - 4) / (2 - (-1)) = (-2) / 3 = -2/3. Therefore, the slope of the line is -2/3, and the answer is option c) -2/3.