For each scenario below, choose the graph that gives the best representation.
(a). The daily amount of calories that a rat eats increases steadily from birth to about age 3 months. Then, the amount levels off until about age 6 months, when it increases again.
(b). Jane leaves her house on her bike. She rides at a constant speed until she reaches a lemonade stand, where she parks her bike and takes a rest. Then she turns around and bikes home as fast as she can.