Exit Slip 4/15/10

The curvature of y2,compared to y1 is narrower and y1 is wider.

Compared to y1, y2's graph is shifted vertically. I see this in the graph by noting that the minimum point of y1 (0,100), and the maximum point of y2 is (0,-100). There is no horizontal shift because the lines have the same pattern horizontally.

The minimums and maximum line up at x=0.