Answer:
d = distance
(x_1, y_1) = coordinates of the first point
(x_2, y_2) = coordinates of the second point
Displacement can be calculated by measuring the final distance away from a point, and then subtracting the initial distance. Displacement is key when determining velocity (which is also a vector). Velocity = displacement/time whereas speed is distance/time.
s = speed
d = distance traveled
t = time elapsed
\overline{v} = average velocity
{\Delta x} = displacement
{\Delta t} = change in time
\overline{a} = average acceleration
v = final velocity
v_0 = starting velocity
t = elapsed time
