ANSWER -
The slope of a line can be calculated using the formula:
m = (y2 - y1) / (x2 - x1)
where (x1, y1) and (x2, y2) are the coordinates of the two points on the line. Substituting the values from the given points, we have:
m = (82.5 - 55) / (15 - 10) = 27.5 / 5 = 5.5
So the slope of the line is 5.5.