Help with 1,2

Use the following information to answer the next question. The graph shows the change in position of an object over an 8.0 s period. Position of an Object over Time 20 position (m) DO According to the graph, the object is moving slowest during which one of the following time intervals? A) O s to 1 s B) 2 s to 3 s C) 4 s to 5 s D) 6 s to 7 s 2. A car travels on a straight country highway for 5.0 km at 100 km/h, then through a more populated area for another 5.0 km at 60 km/h. The average velocity of the car is A) 80 km/h B) 75 km/h C) 3.1 x 102 km/h D) 64 km/h