From Mario's house to school, you can walk in a straight line. In the afternoon he has to stop twice on his way home. His first stop is the gas station that is exactly halfway between the school and his house. The second stop will be a fast-food restaurant to get something to eat. The fast-food restaurant's location partitions the way from the school to Mario's house in the ratio 3:1. The coordinates of his house are (-3, -4) and the coordinates of the school are (5,0).