David left his house at time zero and drove for 2 minutes to the store, at a speed of 8 blocks per minute. Then he stopped and went into the store for 4 minutes. From
there, he drove in the same direction at a speed of 3 blocks per minute until he got to
the bank, which is 6 blocks away from the store. He stopped at the bank for 5
minutes. Then he drove home at a speed of 11 blocks every minute. Make a graph of
showing the number of blocks away from home that David is x minutes after he
leaves his house, until he gets back home.