Final answer:
The slope of the line that passes through the points (20,-52) and (24,8) is calculated using the formula for slope and is found to be 15.
Step-by-step explanation:
To find the slope of a line that passes through two points, we use the formula:
Slope (m) = (y2 - y1) / (x2 - x1)
For the points (20,-52) and (24,8), we plug them into the formula as follows:
m = (8 - (-52)) / (24 - 20) = 60 / 4 = 15
Therefore, the slope of the line that includes points (20,-52) and (24,8) is 15.