$\"\"$

From the graph, the number of cameras on the y - axis and the number of years on the x - axis.

From the graph, the points are $\"\"$ .

Substitute the values of $\"\"$ in the rate of change formula $\"\"$ .

$\"\"$

$\"\"$ millions per year.

The sign of the rate is negative, so the film cameras sold values decrease from 1999 to 2003 is $\"\"$ . $\"\"$

The average rate of change of the number of film cameras sold values decrease from 1999 to 2003 that is $\"\"$ millions per year.