Let the coordinates of the first point be (6, y).
We are given that the slope of the line passing through these two points is 1/4.
We can use the formula for slope:
m = (y2 - y1)/(x2 - x1)
Where (x1, y1) = (6, y) and (x2, y2) = (10, -1)
Plugging in the values:
1/4 = (-1 - y)/(10 - 6)
Multiplying both sides by (10 - 6):
4/4 = -1 - y
1 = -1 - y
Adding y to both sides:
y + 1 = -1
Subtracting 1 from both sides:
y = -2
Therefore, the value of y is -2.