### 9.1 Information Design

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• Math Help

Here are some observations about the stream graph shown in Example 6.

• The height of the color shows the revenue in millions of dollars. This is indicated by the scale at the left side of the graph.
• The opening weekend of a movie tends to have the greatest revenue, while the remaining weekends of the movie's release tend to be less and less.

• Consumer Suggestion

Pixar's first film, Toy Story, was released in 1995, with many more successful movies to follow. The studio's eleven films are all among the 50 highest grossing animated movies of all time. To learn more, visit Pixar's site.

• Checkpoint Solution

When a movie has a particularly long run at the box office, its color will begin to stand out against the other movies' colors as you read the graph from left to right.

To view this in more detail, go to the complete 2010 movie stream graph at xach.com. Avatar's long run is noticeable because its red color stands out against the shades of green used to represent movies released a month or two after Avatar.

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```  ______     ___      ____      ______   __   __
/_   _//   / _ \\   |  _ \\   /_   _//  \ \\/ //
`-| |,-   / //\ \\  | |_| ||   -| ||-    \   //
| ||   |  ___  || | .  //    _| ||_    / . \\
|_||   |_||  |_|| |_|\_\\   /_____//  /_//\_\\
`-`'   `-`   `-`  `-` --`   `-----`   `-`  --`

```