Answer
Average rate of change of the cost of movie ticket = $0.22 per year
Step-by-step explanation
The average rate of change of a function is given as

So, average rate of change in the cost of a movie ticket is given as

Change in cost of movie ticket over the time period
= (Cost of movie ticket in 2007) - (Cost of movie ticket in 1997)
= $6.80 - $4.60
= $2.20
Change in time period = 2007 - 1997 = 10 years
Average rate of change of the cost of movie ticket = (2.20/10) = $0.22 per year
Hope this Helps!!!