A particle moves in a straight line with velocity v of t is equal to negative t squared plus eight meters per second where t is time in seconds. At t is equal to two, the particle's distance from the starting point was five meters. What is the total distance the particle has traveled between t equals two and t equals six seconds? Which expression should Alexei use to solve the problem? So we don't actually have to figure the actual answer out. We just have to figure out what is the appropriate expression. So like always, pause this video and see if you can work through it on your own.