### Home > APCALC > Chapter 3 > Lesson 3.2.2 > Problem 3-63

Answer the following questions using the graph at right, which shows the velocity of a runner over time. The letters * *and

*represent the areas of the two regions in the diagram.*

If the runner was at the starting line at

, describe her direction during the interval illustrated on the graph at right.Include information about the direction that the runner was moving.

What is the significance of point

?How does the runner's motion change when s/he reaches point

?What does region

represent in this situation? That is, what does it tell you about the runner? What about region?What does area under a velocity curve represent?

If

meters andmeters, what doesrepresent in this situation? Why isnegative?Compare and contrast 'displacement' with 'total distance.'