Final answer:
To find the value of m, calculate the slope between any two points on line t. The slope is the same for line r and line t since they are parallel.
Step-by-step explanation:
The slope of a line is given by the formula m = (y2 - y1) / (x2 - x1). Since line r is parallel to line t, they have the same slope. Therefore, to find the value of m, we can choose any two points on line t and calculate the slope between them. Let's choose the points (6.4 s, 2000 m) and (0.50 s, 525 m) to calculate the slope. Using the formula, we substitute the values and calculate the slope:
m = (525 - 2000) / (0.50 - 6.4)
m = -1475 / -5.9
m = 250