(a) Ann is working out by riding her bike. She starts by biking slowly at a constant rate. Then she...

(a) Ann is working out by riding her bike. She starts by biking slowly at a constant rate. Then she gradually picks up speed until she reaches her peak. She maintains this peak speed for the rest of the workout.
Choose the best graph.
Graph 1 Graph 2 Graph 3 Graph 4
(b) A person standing on the ground throws a ball onto a flat rooftop. The ball rolls around for several seconds. Then the ball falls off the roof, into a puddle of mud.
Choose the best graph.
Graph 1 Graph 2 Graph 3 Graph 4