Final answer:
To find the slope of a straight line between two points, subtract the y-coordinates and x-coordinates of the two points to find the rise and run respectively. Then, divide the rise by the run to determine the slope.
Step-by-step explanation:
The slope of a straight line between two points can be calculated by determining the "rise over run" between the two points. To find the slope, begin by designating one point as the starting point and the other point as the end point. Then, subtract the y-coordinates of the two points to find the rise, and subtract the x-coordinates of the two points to find the run. Finally, divide the rise by the run to determine the slope.
For example, let's take the two points (6.4s, 2000m) and (0.50s, 525m). The rise is 2000m - 525m = 1475m, and the run is 6.4s - 0.50s = 5.9s. Dividing the rise by the run, we get a slope of 1475m / 5.9s = 250.847m/s.