V -8 -1 0 1 2 3 4 5 6 Velocity vs. Time The velocity graph represents a vehicle's velocity in kilometers per hour during a three-hour trip A. What is a method for finding the average velocity during the first hour? (3 points) B. Determine the units representing the rate of change of the velocity at 1 hour (3 points) C. Interpret v "(1) based on the graph. (4 points)