Q. The market for autographs including letters o other documents signed by famous people is subject to frequent large price changes as are markets for most collectables. The subsequent table is adapted from one which originally appeared in an article in the wall street journal. it gives the 1997 price for an autograph, the 2001 price also a brief comment by the wall street journal reporter. use the information contained in the comment column of the table to draw a demand also delivery graph for each of the three autographs listed which can account for the change in its market price from 1997 to 2001.