Final answer:
The slope of the line containing the points (-1, 2) and (4, 3) is 1/5.
Step-by-step explanation:
The slope of a line can be found by using the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are the coordinates of two points on the line.
Using the given points (-1, 2) and (4, 3), we can substitute the values into the formula:
m = (3 - 2) / (4 - (-1))
m = 1 / 5
Therefore, the slope of the line is 1/5, which corresponds to option (b).