A snowstorm started at midnight. For the first 4 hours, it snowed at an average rate of one-half
inch per hour.
The snow then started to fall at an average rate of one inch per hour for the next 6 hours.
Then it stopped snowing for 3 hours.
Then it started snowing again at an average rate of one-half inch per hour for the next 4 hours until
the storm was over.
On the set of axes below, graph the amount of snow accumulated over the time interval of the
storm