Final answer:
The slope of the line passing through the given points is 10.5.
Step-by-step explanation:
To find the slope of a line passing through two points, we can use the formula:
Slope = (y2 - y1)/(x2 - x1)
For the given points (18,15) and (16,-6), we have:
Slope = (-6 - 15)/(16 - 18) = -21/-2 = 10.5
Therefore, the slope of the line passing through the given points is 10.5.