During a snowstorm, Abigail tracked the amount of snow on the ground. When the storm began, there were 4 inches of snow on the ground. Snow fell at a constant rate of 1 inch per hour until another 2 inches had fallen. The storm then stopped for 5 hours and then started again at a constant rate of 3 inches every 5 hours for the next 10 hours. Make a graph showing the inches of snow on the ground over time using the data that Abigail collected.