Find the slope of the line passing through the points (8,-1) and (4,-8).
The slope of a line passing through two points (x1, y1) and (x2, y2) is given by the formula:
slope = (y2 - y1) / (x2 - x1)
In this case, the points are (8,-1) and (4,-8).
So, x1 = 8, y1 = -1, x2 = 4, y2 = -8.
slope = (-8 - (-1)) / (4 - 8)
slope = (-8 + 1) / (-4)
slope = -7 / -4
slope = 7/4
Therefore, the slope of the line passing through the points (8,-1) and (4,-8) is 7/4.