<image>Look at the image and fill in the blanks: Zhuoma goes on an outing by electric bike. The graph shows the function relationship between the distance y (kilometers) from her home and the time x (hours). Zhuoma left home at 9 AM and returned home at 3 PM. Based on this graph, fill in the blanks:
(1) Zhuoma takes _________ hours to reach the farthest point from home, and the distance from home at that point is _________ kilometers;
(2) Zhuoma started her first rest at _________ o'clock and rested for _________ hours;
(3) Zhuoma's return speed is _________ kilometers per hour.