### Home > INT3 > Chapter 10 > Lesson 10.1.3 > Problem 10-49

10-49.

The average cost of a movie ticket is

If the cost is increasing

per year, in how many years will the cost double? Construct a representation of this scenario using the generic exponential equation:

Solve for

(the number of years):years What is the average rate of change of the cost of a movie ticket over the interval of the next

years? Explain what the average rate of change means in this context. The average rate of change is the same as asking for the slope of a line.

What is the equation for slope, if the price isand time is?