Using the data that you gathered and the graphs that you created in Chapter 11, "History and Construction of Charts," for VLO (September 2007-September 2010), find the following items:
a. Find a period of congestion on the graph. What were the levels of support and resistance during this trading range? In what direction did a breakout occur? What story does this breakout tell about the war between buyers and sellers?
b. Locate a period when an accelerating uptrend occurs on the graph. When does a reversal occur?
c. Locate a period when a decelerating uptrend occurs on the graph. When does a reversal occur?
d. Find a period on the graph when the major trend is upward, but a retracement occurs.