Tracie rides the bus home from school each day. the graph represents her distance from home relative to the number of minutes since the bus left the school. what does the slope of the graph mean? tracie’s bus travels towards her home at an average speed of mile per minute. tracie’s bus travels towards her home at an average speed of 2 miles per minute. tracie’s bus travels away from her home at an average speed of mile per minute. tracie’s bus travels away from her home at an average speed of 2 miles per minute.